-3(-4b+4)=-72

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Solution for -3(-4b+4)=-72 equation: 



-3(-4b+4)=-72

We move all terms to the left:

-3(-4b+4)-(-72)=0

We add all the numbers together, and all the variables

-3(-4b+4)+72=0

We multiply parentheses

12b-12+72=0

We add all the numbers together, and all the variables

12b+60=0

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

12b=-60

b=-60/12

b=-5

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