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

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



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

We move all terms to the left:

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

We multiply parentheses

7b-15b+21-3=0

We add all the numbers together, and all the variables

-8b+18=0

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

-8b=-18

b=-18/-8

b=2+1/4

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