139+9b=13

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Solution for 139+9b=13 equation: 



139+9b=13

We move all terms to the left:

139+9b-(13)=0

We add all the numbers together, and all the variables

9b+126=0

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

9b=-126

b=-126/9

b=-14

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