7r-5r+8=5r+8-r

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Solution for 7r-5r+8=5r+8-r equation: 



7r-5r+8=5r+8-r

We move all terms to the left:

7r-5r+8-(5r+8-r)=0

We add all the numbers together, and all the variables

7r-5r-(4r+8)+8=0

We add all the numbers together, and all the variables

2r-(4r+8)+8=0

We get rid of parentheses

2r-4r-8+8=0

We add all the numbers together, and all the variables

-2r=0

r=0/-2

r=0

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