-78=x+7x+2

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Solution for -78=x+7x+2 equation: 



-78=x+7x+2

We move all terms to the left:

-78-(x+7x+2)=0

We add all the numbers together, and all the variables

-(8x+2)-78=0

We get rid of parentheses

-8x-2-78=0

We add all the numbers together, and all the variables

-8x-80=0

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

-8x=80

x=80/-8

x=-10

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