7r-5=2r-5

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Solution for 7r-5=2r-5 equation: 



7r-5=2r-5

We move all terms to the left:

7r-5-(2r-5)=0

We get rid of parentheses

7r-2r+5-5=0

We add all the numbers together, and all the variables

5r=0

r=0/5

r=0

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