7-b+7b=13

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Solution for 7-b+7b=13 equation: 



7-b+7b=13

We move all terms to the left:

7-b+7b-(13)=0

We add all the numbers together, and all the variables

6b-6=0

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

6b=6

b=6/6

b=1

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