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13.5=4b-1.3
We move all terms to the left:
13.5-(4b-1.3)=0
We get rid of parentheses
-4b+1.3+13.5=0
We add all the numbers together, and all the variables
-4b+14.8=0
We move all terms containing b to the left, all other terms to the right
-4b=-14.8
b=-14.8/-4
b=3+1/1.4285714285714
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