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5.04+b=13b
We move all terms to the left:
5.04+b-(13b)=0
We add all the numbers together, and all the variables
-12b+5.04=0
We move all terms containing b to the left, all other terms to the right
-12b=-5.04
b=-5.04/-12
b=4.84615384615/11.5384615385
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