-7=1+8x

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Solution for -7=1+8x equation: 



-7=1+8x

We move all terms to the left:

-7-(1+8x)=0

We add all the numbers together, and all the variables

-(8x+1)-7=0

We get rid of parentheses

-8x-1-7=0

We add all the numbers together, and all the variables

-8x-8=0

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

-8x=8

x=8/-8

x=-1

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