-3b+7=25+42

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Solution for -3b+7=25+42 equation: 



-3b+7=25+42

We move all terms to the left:

-3b+7-(25+42)=0

We add all the numbers together, and all the variables

-3b+7-67=0

We add all the numbers together, and all the variables

-3b-60=0

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

-3b=60

b=60/-3

b=-20

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