-r+10=-10+r

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Solution for -r+10=-10+r equation: 



-r+10=-10+r

We move all terms to the left:

-r+10-(-10+r)=0

We add all the numbers together, and all the variables

-r-(r-10)+10=0

We add all the numbers together, and all the variables

-1r-(r-10)+10=0

We get rid of parentheses

-1r-r+10+10=0

We add all the numbers together, and all the variables

-2r+20=0

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

-2r=-20

r=-20/-2

r=+10

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