-31=7x+x-1

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Solution for -31=7x+x-1 equation: 



-31=7x+x-1

We move all terms to the left:

-31-(7x+x-1)=0

We add all the numbers together, and all the variables

-(8x-1)-31=0

We get rid of parentheses

-8x+1-31=0

We add all the numbers together, and all the variables

-8x-30=0

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

-8x=30

x=30/-8

x=-3+3/4

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