7(8+b)=84

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Solution for 7(8+b)=84 equation: 



7(8+b)=84

We move all terms to the left:

7(8+b)-(84)=0

We add all the numbers together, and all the variables

7(b+8)-84=0

We multiply parentheses

7b+56-84=0

We add all the numbers together, and all the variables

7b-28=0

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

7b=28

b=28/7

b=4

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