-x+4=-12-3x

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Solution for -x+4=-12-3x equation: 



-x+4=-12-3x

We move all terms to the left:

-x+4-(-12-3x)=0

We add all the numbers together, and all the variables

-x-(-3x-12)+4=0

We add all the numbers together, and all the variables

-1x-(-3x-12)+4=0

We get rid of parentheses

-1x+3x+12+4=0

We add all the numbers together, and all the variables

2x+16=0

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

2x=-16

x=-16/2

x=-8

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