-3(8-3b)=-87

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Solution for -3(8-3b)=-87 equation: 



-3(8-3b)=-87

We move all terms to the left:

-3(8-3b)-(-87)=0

We add all the numbers together, and all the variables

-3(-3b+8)-(-87)=0

We add all the numbers together, and all the variables

-3(-3b+8)+87=0

We multiply parentheses

9b-24+87=0

We add all the numbers together, and all the variables

9b+63=0

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

9b=-63

b=-63/9

b=-7

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