-120=8(1-4a)

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Solution for -120=8(1-4a) equation: 



-120=8(1-4a)

We move all terms to the left:

-120-(8(1-4a))=0

We add all the numbers together, and all the variables

-(8(-4a+1))-120=0



We calculate terms in parentheses: -(8(-4a+1)), so:

8(-4a+1)

We multiply parentheses

-32a+8

Back to the equation:

-(-32a+8)



We get rid of parentheses

32a-8-120=0

We add all the numbers together, and all the variables

32a-128=0

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

32a=128

a=128/32

a=4

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