10b+9b=-57

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Solution for 10b+9b=-57 equation: 



10b+9b=-57

We move all terms to the left:

10b+9b-(-57)=0

We add all the numbers together, and all the variables

19b+57=0

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

19b=-57

b=-57/19

b=-3

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