7r-r=7r-6

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



7r-r=7r-6

We move all terms to the left:

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

We add all the numbers together, and all the variables

6r-(7r-6)=0

We get rid of parentheses

6r-7r+6=0

We add all the numbers together, and all the variables

-1r+6=0

We move all terms containing r to the left, all other terms to the right

-r=-6

r=-6/-1

r=+6

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