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7.5b=61.5
We move all terms to the left:
7.5b-(61.5)=0
We add all the numbers together, and all the variables
7.5b-61.5=0
We move all terms containing b to the left, all other terms to the right
7.5b=61.5
b=61.5/7.5
b=8+1/5
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