-3(9+2b)=30

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Solution for -3(9+2b)=30 equation: 



-3(9+2b)=30

We move all terms to the left:

-3(9+2b)-(30)=0

We add all the numbers together, and all the variables

-3(2b+9)-30=0

We multiply parentheses

-6b-27-30=0

We add all the numbers together, and all the variables

-6b-57=0

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

-6b=57

b=57/-6

b=-9+1/2

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