当x= 时,代数式3x-1与2x+6的值互为相反数

当x= 时,代数式3x-1与2x+6的值互为相反数
当x= 时,代数式3x-1与2x+6的值互为相反数

当x= 时,代数式3x-1与2x+6的值互为相反数
3x-1+2x+6=0
5x=-5
x=-1

3x-1+2x+6=0
5x=-5
x=-1

-1的时候
http://pan.baidu.com/share/link?shareid=4227184884&uk=993251061
http://pan.baidu.com/share/link?shareid=4231381610&uk=993251061
http://pan.baidu.com/share/link?shareid=4232198010&uk=...

全部展开

-1的时候
http://pan.baidu.com/share/link?shareid=4227184884&uk=993251061
http://pan.baidu.com/share/link?shareid=4231381610&uk=993251061
http://pan.baidu.com/share/link?shareid=4232198010&uk=993251061
http://pan.baidu.com/share/link?shareid=4232822762&uk=993251061
http://pan.baidu.com/share/link?shareid=4233382791&uk=993251061
http://pan.baidu.com/share/link?shareid=4234008549&uk=993251061
http://pan.baidu.com/share/link?shareid=4235871203&uk=993251061
http://pan.baidu.com/share/link?shareid=4236506771&uk=993251061
http://pan.baidu.com/share/link?shareid=4237096929&uk=993251061
http://pan.baidu.com/share/link?shareid=4237695332&uk=993251061
http://pan.baidu.com/share/link?shareid=4238378681&uk=993251061
http://pan.baidu.com/share/link?shareid=4239014767&uk=993251061
http://pan.baidu.com/share/link?shareid=4239610112&uk=993251061
http://pan.baidu.com/share/link?shareid=4240180876&uk=993251061
http://pan.baidu.com/share/link?shareid=4240776824&uk=993251061
http://pan.baidu.com/share/link?shareid=4249837041&uk=993251061
http://pan.baidu.com/share/link?shareid=4250408484&uk=993251061
http://pan.baidu.com/share/link?shareid=4250978331&uk=993251061
http://pan.baidu.com/share/link?shareid=4251593873&uk=993251061
http://pan.baidu.com/share/link?shareid=4252169566&uk=993251061
http://pan.baidu.com/share/link?shareid=4252794898&uk=993251061
http://pan.baidu.com/share/link?shareid=4253375714&uk=993251061
http://pan.baidu.com/share/link?shareid=4253999081&uk=993251061
http://pan.baidu.com/share/link?shareid=4254564341&uk=993251061
http://pan.baidu.com/share/link?shareid=4255264552&uk=993251061
http://pan.baidu.com/share/link?shareid=4256182166&uk=993251061
http://pan.baidu.com/share/link?shareid=4256685039&uk=993251061
http://pan.baidu.com/share/link?shareid=4257489759&uk=993251061
http://pan.baidu.com/share/link?shareid=4258099780&uk=993251061
http://pan.baidu.com/share/link?shareid=4258671982&uk=993251061
http://pan.baidu.com/share/link?shareid=4259324653&uk=993251061
http://pan.baidu.com/share/link?shareid=4260287569&uk=993251061
http://pan.baidu.com/share/link?shareid=4260890344&uk=993251061
http://pan.baidu.com/share/link?shareid=4261673235&uk=993251061
http://pan.baidu.com/share/link?shareid=4262488406&uk=993251061
http://pan.baidu.com/share/link?shareid=69890146&uk=993251061
http://pan.baidu.com/share/link?shareid=70541043&uk=993251061
http://pan.baidu.com/share/link?shareid=71155671&uk=993251061
http://pan.baidu.com/share/link?shareid=73654386&uk=993251061
http://pan.baidu.com/share/link?shareid=74351821&uk=993251061
http://pan.baidu.com/share/link?shareid=92800433&uk=993251061
http://pan.baidu.com/share/link?shareid=93747646&uk=993251061
http://pan.baidu.com/share/link?shareid=94423641&uk=993251061
http://pan.baidu.com/share/link?shareid=95098204&uk=993251061
http://pan.baidu.com/share/link?shareid=95697042&uk=993251061
http://pan.baidu.com/share/link?shareid=96402515&uk=993251061
http://pan.baidu.com/share/link?shareid=96968374&uk=993251061
http://pan.baidu.com/share/link?shareid=97676522&uk=993251061
http://pan.baidu.com/share/link?shareid=98656319&uk=993251061
http://pan.baidu.com/share/link?shareid=102097622&uk=993251061
http://pan.baidu.com/share/link?shareid=103107454&uk=993251061
http://pan.baidu.com/share/link?shareid=103723596&uk=993251061
http://pan.baidu.com/share/link?shareid=104351088&uk=993251061
http://pan.baidu.com/share/link?shareid=104996224&uk=993251061
http://pan.baidu.com/share/link?shareid=105715758&uk=993251061
http://pan.baidu.com/share/link?shareid=106313514&uk=993251061
http://pan.baidu.com/share/link?shareid=107042079&uk=993251061
http://pan.baidu.com/share/link?shareid=107617728&uk=993251061
http://pan.baidu.com/share/link?shareid=108251558&uk=993251061
http://pan.baidu.com/share/link?shareid=108913422&uk=993251061
http://pan.baidu.com/share/link?shareid=112215551&uk=993251061
http://pan.baidu.com/share/link?shareid=112863644&uk=993251061
http://pan.baidu.com/share/link?shareid=113514728&uk=993251061
http://pan.baidu.com/share/link?shareid=114158334&uk=993251061
http://pan.baidu.com/share/link?shareid=115022071&uk=993251061
http://pan.baidu.com/share/link?shareid=116195727&uk=993251061
http://pan.baidu.com/share/link?shareid=116696389&uk=993251061
http://pan.baidu.com/share/link?shareid=117211501&uk=993251061
http://pan.baidu.com/share/link?shareid=118311118&uk=993251061
http://pan.baidu.com/share/link?shareid=118973590&uk=993251061
http://pan.baidu.com/share/link?shareid=119577727&uk=993251061
http://pan.baidu.com/share/link?shareid=120108703&uk=993251061
http://pan.baidu.com/share/link?shareid=120641106&uk=993251061
http://pan.baidu.com/share/link?shareid=121176822&uk=993251061
http://pan.baidu.com/share/link?shareid=121633952&uk=993251061
http://pan.baidu.com/share/link?shareid=122127638&uk=993251061
http://pan.baidu.com/share/link?shareid=124409676&uk=993251061
http://pan.baidu.com/share/link?shareid=124913641&uk=993251061
http://pan.baidu.com/share/link?shareid=125457702&uk=993251061
http://pan.baidu.com/s/13lSxS\x09
http://pan.baidu.com/s/1oYJ8Q\x09
http://pan.baidu.com/s/1y2kue\x09
http://pan.baidu.com/s/1f5tG5\x09
http://pan.baidu.com/s/1xMoqT\x09
http://pan.baidu.com/s/1EHltX\x09
http://pan.baidu.com/s/1BZvLn\x09
http://pan.baidu.com/s/1tc38q\x09
http://pan.baidu.com/s/1BtxN1\x09
http://pan.baidu.com/s/1Ebo9R\x09
http://pan.baidu.com/s/1LBLq\x09
http://pan.baidu.com/s/1w0roK\x09
http://pan.baidu.com/s/1AD12i\x09
http://pan.baidu.com/s/1lAXmn\x09
http://pan.baidu.com/s/17pBM2\x09
http://pan.baidu.com/s/1kpctE\x09
http://pan.baidu.com/s/19r6jB\x09
http://pan.baidu.com/s/1d316j\x09
http://pan.baidu.com/s/1oYJ8f\x09
http://pan.baidu.com/s/1tI3uw\x09
http://pan.baidu.com/s/19r6j0\x09
http://pan.baidu.com/s/1zOdkW\x09
http://pan.baidu.com/s/1Ebo9a\x09
http://pan.baidu.com/s/1Gdgo2\x09
http://pan.baidu.com/s/1ch5nz\x09
http://pan.baidu.com/s/1tI3tO\x09
http://pan.baidu.com/s/1zigCn\x09
http://pan.baidu.com/s/1gRonz\x09
http://pan.baidu.com/s/1Gdgok\x09
http://pan.baidu.com/s/125Ucw
\x09
http://pan.baidu.com/s/125Ucw\x09
http://pan.baidu.com/s/1ePwdU\x09
http://pan.baidu.com/s/1tI3sj\x09
http://pan.baidu.com/share/link?shareid=4032227318&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4032897126&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4033559111&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4034199176&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4036851905&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4038592893&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4039206191&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4054026494&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4056197016&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4056740132&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4057924349&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4066826428&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4069048344&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4070308422&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4074225129&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4075658125&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4078755622&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4079458918&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4084307643&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4085445975&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4086016002&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4086610169&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4087138126&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4087738670&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4088509966&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4089048836&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4090003496&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4090631540&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4091173573&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4091789005&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4092300246&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4092903949&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4093436233&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4094045159&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4094707289&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4095226878&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4096067245&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4096857518&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4097480393&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4098008568&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4098528511&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4099026327&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4099544228&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4100154708&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4100851104&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4101440985&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4102263842&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4103105324&uk=993251061\x09
http://pan.baidu.com/share/link?shareid=4103809685&uk=993251061

收起

值互为相反数也就说两个数相加等于0
3X-1+2X+6=0
X=-1

果断填-1进去