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12.5=-1.5+b/0
We move all terms to the left:
12.5-(-1.5+b/0)=0
We add all the numbers together, and all the variables
-(b/0-1.5)+12.5=0
We get rid of parentheses
-b/0+1.5+12.5=0
We multiply all the terms by the denominator
-b+(1.5)*0+(12.5)*0=0
We add all the numbers together, and all the variables
-b=0
b=0/-1
b=0
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