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18-2b=4(8b-4)
We move all terms to the left:
18-2b-(4(8b-4))=0
We calculate terms in parentheses: -(4(8b-4)), so:We get rid of parentheses
4(8b-4)
We multiply parentheses
32b-16
Back to the equation:
-(32b-16)
-2b-32b+16+18=0
We add all the numbers together, and all the variables
-34b+34=0
We move all terms containing b to the left, all other terms to the right
-34b=-34
b=-34/-34
b=1
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