9r-3r=r+25

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Solution for 9r-3r=r+25 equation: 



9r-3r=r+25

We move all terms to the left:

9r-3r-(r+25)=0

We add all the numbers together, and all the variables

6r-(r+25)=0

We get rid of parentheses

6r-r-25=0

We add all the numbers together, and all the variables

5r-25=0

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

5r=25

r=25/5

r=5

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