15r-9=-39

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Solution for 15r-9=-39 equation: 



15r-9=-39

We move all terms to the left:

15r-9-(-39)=0

We add all the numbers together, and all the variables

15r+30=0

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

15r=-30

r=-30/15

r=-2

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