-56=-2(-4-5a)+6(a+8)

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Solution for -56=-2(-4-5a)+6(a+8) equation: 



-56=-2(-4-5a)+6(a+8)

We move all terms to the left:

-56-(-2(-4-5a)+6(a+8))=0

We add all the numbers together, and all the variables

-(-2(-5a-4)+6(a+8))-56=0



We calculate terms in parentheses: -(-2(-5a-4)+6(a+8)), so:

-2(-5a-4)+6(a+8)

We multiply parentheses

10a+6a+8+48

We add all the numbers together, and all the variables

16a+56

Back to the equation:

-(16a+56)



We get rid of parentheses

-16a-56-56=0

We add all the numbers together, and all the variables

-16a-112=0

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

-16a=112

a=112/-16

a=-7

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