7(b+3)=84

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Solution for 7(b+3)=84 equation: 



7(b+3)=84

We move all terms to the left:

7(b+3)-(84)=0

We multiply parentheses

7b+21-84=0

We add all the numbers together, and all the variables

7b-63=0

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

7b=63

b=63/7

b=9

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