-20=-8x+4(x-8)

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Solution for -20=-8x+4(x-8) equation: 



-20=-8x+4(x-8)

We move all terms to the left:

-20-(-8x+4(x-8))=0



We calculate terms in parentheses: -(-8x+4(x-8)), so:

-8x+4(x-8)

We multiply parentheses

-8x+4x-32

We add all the numbers together, and all the variables

-4x-32

Back to the equation:

-(-4x-32)



We get rid of parentheses

4x+32-20=0

We add all the numbers together, and all the variables

4x+12=0

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

4x=-12

x=-12/4

x=-3

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