15=2b+3

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Solution for 15=2b+3 equation: 



15=2b+3

We move all terms to the left:

15-(2b+3)=0

We get rid of parentheses

-2b-3+15=0

We add all the numbers together, and all the variables

-2b+12=0

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

-2b=-12

b=-12/-2

b=+6

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