3b+7=13

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Solution for 3b+7=13 equation: 



3b+7=13

We move all terms to the left:

3b+7-(13)=0

We add all the numbers together, and all the variables

3b-6=0

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

3b=6

b=6/3

b=2

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