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-0.5(4b+8)=16
We move all terms to the left:
-0.5(4b+8)-(16)=0
We multiply parentheses
-2b-4-16=0
We add all the numbers together, and all the variables
-2b-20=0
We move all terms containing b to the left, all other terms to the right
-2b=20
b=20/-2
b=-10
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