5r+8r=52

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Solution for 5r+8r=52 equation: 



5r+8r=52

We move all terms to the left:

5r+8r-(52)=0

We add all the numbers together, and all the variables

13r-52=0

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

13r=52

r=52/13

r=4

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