-3(4b-1)=87

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Solution for -3(4b-1)=87 equation: 



-3(4b-1)=87

We move all terms to the left:

-3(4b-1)-(87)=0

We multiply parentheses

-12b+3-87=0

We add all the numbers together, and all the variables

-12b-84=0

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

-12b=84

b=84/-12

b=-7

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