2(15b-24)-21=-279

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Solution for 2(15b-24)-21=-279 equation: 



2(15b-24)-21=-279

We move all terms to the left:

2(15b-24)-21-(-279)=0

We add all the numbers together, and all the variables

2(15b-24)+258=0

We multiply parentheses

30b-48+258=0

We add all the numbers together, and all the variables

30b+210=0

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

30b=-210

b=-210/30

b=-7

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