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-8.2b+3=-15
We move all terms to the left:
-8.2b+3-(-15)=0
We add all the numbers together, and all the variables
-8.2b+18=0
We move all terms containing b to the left, all other terms to the right
-8.2b=-18
b=-18/-8.2
b=2+1/5.125
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