3-12b=15

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Solution for 3-12b=15 equation: 



3-12b=15

We move all terms to the left:

3-12b-(15)=0

We add all the numbers together, and all the variables

-12b-12=0

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

-12b=12

b=12/-12

b=-1

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