-3b+7b=-16

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Solution for -3b+7b=-16 equation: 



-3b+7b=-16

We move all terms to the left:

-3b+7b-(-16)=0

We add all the numbers together, and all the variables

4b+16=0

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

4b=-16

b=-16/4

b=-4

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