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7b+6.5-9.5=23.5
We move all terms to the left:
7b+6.5-9.5-(23.5)=0
We add all the numbers together, and all the variables
7b-26.5=0
We move all terms containing b to the left, all other terms to the right
7b=26.5
b=26.5/7
b=3+3.66666666667/4.66666666667
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