9+2b=13

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Solution for 9+2b=13 equation: 



9+2b=13

We move all terms to the left:

9+2b-(13)=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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