15r+18=9

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Solution for 15r+18=9 equation: 



15r+18=9

We move all terms to the left:

15r+18-(9)=0

We add all the numbers together, and all the variables

15r+9=0

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

15r=-9

r=-9/15

r=-3/5

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