9r-6r+7=9r+7-r

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Solution for 9r-6r+7=9r+7-r equation: 



9r-6r+7=9r+7-r

We move all terms to the left:

9r-6r+7-(9r+7-r)=0

We add all the numbers together, and all the variables

9r-6r-(8r+7)+7=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

3r-8r-7+7=0

We add all the numbers together, and all the variables

-5r=0

r=0/-5

r=0

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