12b-9+2b-b=187

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Solution for 12b-9+2b-b=187 equation: 



12b-9+2b-b=187

We move all terms to the left:

12b-9+2b-b-(187)=0

We add all the numbers together, and all the variables

13b-196=0

We move all terms containing b to the left, all other terms to the right

13b=196

b=196/13

b=15+1/13

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