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b/2-8=-9
We move all terms to the left:
b/2-8-(-9)=0
We add all the numbers together, and all the variables
b/2+1=0
We multiply all the terms by the denominator
b+1*2=0
We add all the numbers together, and all the variables
b+2=0
We move all terms containing b to the left, all other terms to the right
b=-2
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