-10b+4b+12=9(-4b)

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Solution for -10b+4b+12=9(-4b) equation: 



-10b+4b+12=9(-4b)

We move all terms to the left:

-10b+4b+12-(9(-4b))=0

We add all the numbers together, and all the variables

-6b-(9(-4b))+12=0



We calculate terms in parentheses: -(9(-4b)), so:

9(-4b)

We multiply parentheses

-36b

Back to the equation:

-(-36b)



We get rid of parentheses

-6b+36b+12=0

We add all the numbers together, and all the variables

30b+12=0

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

30b=-12

b=-12/30

b=-2/5

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