13b+7=20

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Solution for 13b+7=20 equation: 



13b+7=20

We move all terms to the left:

13b+7-(20)=0

We add all the numbers together, and all the variables

13b-13=0

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

13b=13

b=13/13

b=1

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