5r-20=2r+25

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Solution for 5r-20=2r+25 equation: 



5r-20=2r+25

We move all terms to the left:

5r-20-(2r+25)=0

We get rid of parentheses

5r-2r-25-20=0

We add all the numbers together, and all the variables

3r-45=0

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

3r=45

r=45/3

r=15

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