15+2r=-9(4r-5)

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Solution for 15+2r=-9(4r-5) equation: 



15+2r=-9(4r-5)

We move all terms to the left:

15+2r-(-9(4r-5))=0



We calculate terms in parentheses: -(-9(4r-5)), so:

-9(4r-5)

We multiply parentheses

-36r+45

Back to the equation:

-(-36r+45)



We get rid of parentheses

2r+36r-45+15=0

We add all the numbers together, and all the variables

38r-30=0

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

38r=30

r=30/38

r=15/19

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