-42=7x+x-2

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Solution for -42=7x+x-2 equation: 



-42=7x+x-2

We move all terms to the left:

-42-(7x+x-2)=0

We add all the numbers together, and all the variables

-(8x-2)-42=0

We get rid of parentheses

-8x+2-42=0

We add all the numbers together, and all the variables

-8x-40=0

We move all terms containing x to the left, all other terms to the right

-8x=40

x=40/-8

x=-5

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