2r-7r=2r-3r

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Solution for 2r-7r=2r-3r equation: 



2r-7r=2r-3r

We move all terms to the left:

2r-7r-(2r-3r)=0

We add all the numbers together, and all the variables

2r-7r-(-1r)=0

We add all the numbers together, and all the variables

-5r-(-1r)=0

We get rid of parentheses

-5r+1r=0

We add all the numbers together, and all the variables

-4r=0

r=0/-4

r=0

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