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-(-9r)=0

We add all the numbers together, and all the variables

5r-(-9r)=0

We get rid of parentheses

5r+9r=0

We add all the numbers together, and all the variables

14r=0

r=0/14

r=0

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