r/9+12=25

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Solution for r/9+12=25 equation: 



r/9+12=25

We move all terms to the left:

r/9+12-(25)=0

We add all the numbers together, and all the variables

r/9-13=0

We multiply all the terms by the denominator


r-13*9=0

We add all the numbers together, and all the variables

r-117=0

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

r=117

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