2(5b-7)=-84

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Solution for 2(5b-7)=-84 equation: 



2(5b-7)=-84

We move all terms to the left:

2(5b-7)-(-84)=0

We add all the numbers together, and all the variables

2(5b-7)+84=0

We multiply parentheses

10b-14+84=0

We add all the numbers together, and all the variables

10b+70=0

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

10b=-70

b=-70/10

b=-7

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