7b-84=b+54

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Solution for 7b-84=b+54 equation: 



7b-84=b+54

We move all terms to the left:

7b-84-(b+54)=0

We get rid of parentheses

7b-b-54-84=0

We add all the numbers together, and all the variables

6b-138=0

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

6b=138

b=138/6

b=23

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