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-5+b/3=9
We move all terms to the left:
-5+b/3-(9)=0
We add all the numbers together, and all the variables
b/3-14=0
We multiply all the terms by the denominator
b-14*3=0
We add all the numbers together, and all the variables
b-42=0
We move all terms containing b to the left, all other terms to the right
b=42
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