3b+15=11+b

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Solution for 3b+15=11+b equation: 



3b+15=11+b

We move all terms to the left:

3b+15-(11+b)=0

We add all the numbers together, and all the variables

3b-(b+11)+15=0

We get rid of parentheses

3b-b-11+15=0

We add all the numbers together, and all the variables

2b+4=0

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

2b=-4

b=-4/2

b=-2

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