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-34-7b=-3(5b+6)
We move all terms to the left:
-34-7b-(-3(5b+6))=0
We calculate terms in parentheses: -(-3(5b+6)), so:We get rid of parentheses
-3(5b+6)
We multiply parentheses
-15b-18
Back to the equation:
-(-15b-18)
-7b+15b+18-34=0
We add all the numbers together, and all the variables
8b-16=0
We move all terms containing b to the left, all other terms to the right
8b=16
b=16/8
b=2
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