-56=-2(2a-4)+4(3a-4)

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Solution for -56=-2(2a-4)+4(3a-4) equation: 



-56=-2(2a-4)+4(3a-4)

We move all terms to the left:

-56-(-2(2a-4)+4(3a-4))=0



We calculate terms in parentheses: -(-2(2a-4)+4(3a-4)), so:

-2(2a-4)+4(3a-4)

We multiply parentheses

-4a+12a+8-16

We add all the numbers together, and all the variables

8a-8

Back to the equation:

-(8a-8)



We get rid of parentheses

-8a+8-56=0

We add all the numbers together, and all the variables

-8a-48=0

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

-8a=48

a=48/-8

a=-6

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