15r-5=55

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Solution for 15r-5=55 equation: 



15r-5=55

We move all terms to the left:

15r-5-(55)=0

We add all the numbers together, and all the variables

15r-60=0

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

15r=60

r=60/15

r=4

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