-56=-2(1-3a)+3(a+3)

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Solution for -56=-2(1-3a)+3(a+3) equation: 



-56=-2(1-3a)+3(a+3)

We move all terms to the left:

-56-(-2(1-3a)+3(a+3))=0

We add all the numbers together, and all the variables

-(-2(-3a+1)+3(a+3))-56=0



We calculate terms in parentheses: -(-2(-3a+1)+3(a+3)), so:

-2(-3a+1)+3(a+3)

We multiply parentheses

6a+3a-2+9

We add all the numbers together, and all the variables

9a+7

Back to the equation:

-(9a+7)



We get rid of parentheses

-9a-7-56=0

We add all the numbers together, and all the variables

-9a-63=0

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

-9a=63

a=63/-9

a=-7

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