5(-1+3b)=5(7+4b)

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Solution for 5(-1+3b)=5(7+4b) equation:



5(-1+3b)=5(7+4b)
We move all terms to the left:
5(-1+3b)-(5(7+4b))=0
We add all the numbers together, and all the variables
5(3b-1)-(5(4b+7))=0
We multiply parentheses
15b-(5(4b+7))-5=0
We calculate terms in parentheses: -(5(4b+7)), so:
5(4b+7)
We multiply parentheses
20b+35
Back to the equation:
-(20b+35)
We get rid of parentheses
15b-20b-35-5=0
We add all the numbers together, and all the variables
-5b-40=0
We move all terms containing b to the left, all other terms to the right
-5b=40
b=40/-5
b=-8

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