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-48+12b=1b+15
We move all terms to the left:
-48+12b-(1b+15)=0
We add all the numbers together, and all the variables
12b-(b+15)-48=0
We get rid of parentheses
12b-b-15-48=0
We add all the numbers together, and all the variables
11b-63=0
We move all terms containing b to the left, all other terms to the right
11b=63
b=63/11
b=5+8/11
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