15r-12=9r+102

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Solution for 15r-12=9r+102 equation: 



15r-12=9r+102

We move all terms to the left:

15r-12-(9r+102)=0

We get rid of parentheses

15r-9r-102-12=0

We add all the numbers together, and all the variables

6r-114=0

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

6r=114

r=114/6

r=19

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