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2.5b-2=6.5
We move all terms to the left:
2.5b-2-(6.5)=0
We add all the numbers together, and all the variables
2.5b-8.5=0
We move all terms containing b to the left, all other terms to the right
2.5b=8.5
b=8.5/2.5
b=3+1/2.5
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