-x=7x-2x

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Solution for -x=7x-2x equation: 



-x=7x-2x

We move all terms to the left:

-x-(7x-2x)=0

We add all the numbers together, and all the variables

-x-(+5x)=0

We add all the numbers together, and all the variables

-1x-(+5x)=0

We get rid of parentheses

-1x-5x=0

We add all the numbers together, and all the variables

-6x=0

x=0/-6

x=0

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