-30=-27+b/15

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Solution for -30=-27+b/15 equation: 



-30=-27+b/15

We move all terms to the left:

-30-(-27+b/15)=0

We add all the numbers together, and all the variables

-(b/15-27)-30=0

We get rid of parentheses

-b/15+27-30=0

We multiply all the terms by the denominator


-b+27*15-30*15=0

We add all the numbers together, and all the variables

-1b-45=0

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

-b=45

b=45/-1

b=-45

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