3b+7b=-30.5

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Solution for 3b+7b=-30.5 equation: 



3b+7b=-30.5

We move all terms to the left:

3b+7b-(-30.5)=0

We add all the numbers together, and all the variables

10b+30.5=0

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

10b=-30.5

b=-30.5/10

b=-3+0.5/10

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