15r-4=5

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Solution for 15r-4=5 equation: 



15r-4=5

We move all terms to the left:

15r-4-(5)=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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