5r-15=30

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Solution for 5r-15=30 equation: 



5r-15=30

We move all terms to the left:

5r-15-(30)=0

We add all the numbers together, and all the variables

5r-45=0

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

5r=45

r=45/5

r=9

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