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91=3-8(b-5)
We move all terms to the left:
91-(3-8(b-5))=0
We calculate terms in parentheses: -(3-8(b-5)), so:We get rid of parentheses
3-8(b-5)
determiningTheFunctionDomain -8(b-5)+3
We multiply parentheses
-8b+40+3
We add all the numbers together, and all the variables
-8b+43
Back to the equation:
-(-8b+43)
8b-43+91=0
We add all the numbers together, and all the variables
8b+48=0
We move all terms containing b to the left, all other terms to the right
8b=-48
b=-48/8
b=-6
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