-r-3=7-r

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Solution for -r-3=7-r equation: 



-r-3=7-r

We move all terms to the left:

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

We add all the numbers together, and all the variables

-r-(-1r+7)-3=0

We add all the numbers together, and all the variables

-1r-(-1r+7)-3=0

We get rid of parentheses

-1r+1r-7-3=0

We add all the numbers together, and all the variables

-10!=0

There is no solution for this equation

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