17r+13r=20

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Solution for 17r+13r=20 equation: 



17r+13r=20

We move all terms to the left:

17r+13r-(20)=0

We add all the numbers together, and all the variables

30r-20=0

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

30r=20

r=20/30

r=2/3

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