-7x-12=-4x+3(-4-x)

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Solution for -7x-12=-4x+3(-4-x) equation: 



-7x-12=-4x+3(-4-x)

We move all terms to the left:

-7x-12-(-4x+3(-4-x))=0

We add all the numbers together, and all the variables

-7x-(-4x+3(-1x-4))-12=0



We calculate terms in parentheses: -(-4x+3(-1x-4)), so:

-4x+3(-1x-4)

We multiply parentheses

-4x-3x-12

We add all the numbers together, and all the variables

-7x-12

Back to the equation:

-(-7x-12)



We get rid of parentheses

-7x+7x+12-12=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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