8r-3r=-2r+7r

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Solution for 8r-3r=-2r+7r equation: 



8r-3r=-2r+7r

We move all terms to the left:

8r-3r-(-2r+7r)=0

We add all the numbers together, and all the variables

8r-3r-(+5r)=0

We add all the numbers together, and all the variables

5r-(+5r)=0

We get rid of parentheses

5r-5r=0

We add all the numbers together, and all the variables

=0

r=0/1

r=0

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