8b+30=-2b

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Solution for 8b+30=-2b equation: 



8b+30=-2b

We move all terms to the left:

8b+30-(-2b)=0

We get rid of parentheses

8b+2b+30=0

We add all the numbers together, and all the variables

10b+30=0

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

10b=-30

b=-30/10

b=-3

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