11+13b=-9+15b

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Solution for 11+13b=-9+15b equation: 



11+13b=-9+15b

We move all terms to the left:

11+13b-(-9+15b)=0

We add all the numbers together, and all the variables

13b-(15b-9)+11=0

We get rid of parentheses

13b-15b+9+11=0

We add all the numbers together, and all the variables

-2b+20=0

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

-2b=-20

b=-20/-2

b=+10

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