5r+8r+4=30

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Solution for 5r+8r+4=30 equation: 



5r+8r+4=30

We move all terms to the left:

5r+8r+4-(30)=0

We add all the numbers together, and all the variables

13r-26=0

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

13r=26

r=26/13

r=2

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