-5(4a-4)=-100

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Solution for -5(4a-4)=-100 equation: 



-5(4a-4)=-100

We move all terms to the left:

-5(4a-4)-(-100)=0

We add all the numbers together, and all the variables

-5(4a-4)+100=0

We multiply parentheses

-20a+20+100=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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