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8.3=b/13
We move all terms to the left:
8.3-(b/13)=0
We add all the numbers together, and all the variables
-(+b/13)+8.3=0
We get rid of parentheses
-b/13+8.3=0
We multiply all the terms by the denominator
-b+(8.3)*13=0
We add all the numbers together, and all the variables
-1b+107.9=0
We move all terms containing b to the left, all other terms to the right
-b=-107.9
b=-107.9/-1
b=107+0.90000000000001/1
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