-(12+4x)=-40

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Solution for -(12+4x)=-40 equation: 



-(12+4x)=-40

We move all terms to the left:

-(12+4x)-(-40)=0

We add all the numbers together, and all the variables

-(4x+12)-(-40)=0

We add all the numbers together, and all the variables

-(4x+12)+40=0

We get rid of parentheses

-4x-12+40=0

We add all the numbers together, and all the variables

-4x+28=0

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

-4x=-28

x=-28/-4

x=+7

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