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b/15+8=-1
We move all terms to the left:
b/15+8-(-1)=0
We add all the numbers together, and all the variables
b/15+9=0
We multiply all the terms by the denominator
b+9*15=0
We add all the numbers together, and all the variables
b+135=0
We move all terms containing b to the left, all other terms to the right
b=-135
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