2b+15=20-b

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Solution for 2b+15=20-b equation: 



2b+15=20-b

We move all terms to the left:

2b+15-(20-b)=0

We add all the numbers together, and all the variables

2b-(-1b+20)+15=0

We get rid of parentheses

2b+1b-20+15=0

We add all the numbers together, and all the variables

3b-5=0

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

3b=5

b=5/3

b=1+2/3

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