-31=-4x+7x-4

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Solution for -31=-4x+7x-4 equation: 



-31=-4x+7x-4

We move all terms to the left:

-31-(-4x+7x-4)=0

We add all the numbers together, and all the variables

-(3x-4)-31=0

We get rid of parentheses

-3x+4-31=0

We add all the numbers together, and all the variables

-3x-27=0

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

-3x=27

x=27/-3

x=-9

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