b+390=-8b+3

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Solution for b+390=-8b+3 equation: 



b+390=-8b+3

We move all terms to the left:

b+390-(-8b+3)=0

We get rid of parentheses

b+8b-3+390=0

We add all the numbers together, and all the variables

9b+387=0

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

9b=-387

b=-387/9

b=-43

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