3b+7=4b

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Solution for 3b+7=4b equation: 



3b+7=4b

We move all terms to the left:

3b+7-(4b)=0

We add all the numbers together, and all the variables

-1b+7=0

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

-b=-7

b=-7/-1

b=+7

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