-12=-31+4x

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Solution for -12=-31+4x equation: 



-12=-31+4x

We move all terms to the left:

-12-(-31+4x)=0

We add all the numbers together, and all the variables

-(4x-31)-12=0

We get rid of parentheses

-4x+31-12=0

We add all the numbers together, and all the variables

-4x+19=0

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

-4x=-19

x=-19/-4

x=4+3/4

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