3b+12=15

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Solution for 3b+12=15 equation: 



3b+12=15

We move all terms to the left:

3b+12-(15)=0

We add all the numbers together, and all the variables

3b-3=0

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

3b=3

b=3/3

b=1

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