7b-(5b+7)=3

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Solution for 7b-(5b+7)=3 equation: 



7b-(5b+7)=3

We move all terms to the left:

7b-(5b+7)-(3)=0

We get rid of parentheses

7b-5b-7-3=0

We add all the numbers together, and all the variables

2b-10=0

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

2b=10

b=10/2

b=5

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