-125=-5(1-4a)

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Solution for -125=-5(1-4a) equation: 



-125=-5(1-4a)

We move all terms to the left:

-125-(-5(1-4a))=0

We add all the numbers together, and all the variables

-(-5(-4a+1))-125=0



We calculate terms in parentheses: -(-5(-4a+1)), so:

-5(-4a+1)

We multiply parentheses

20a-5

Back to the equation:

-(20a-5)



We get rid of parentheses

-20a+5-125=0

We add all the numbers together, and all the variables

-20a-120=0

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

-20a=120

a=120/-20

a=-6

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