r+10=10+9r

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Solution for r+10=10+9r equation: 



r+10=10+9r

We move all terms to the left:

r+10-(10+9r)=0

We add all the numbers together, and all the variables

r-(9r+10)+10=0

We get rid of parentheses

r-9r-10+10=0

We add all the numbers together, and all the variables

-8r=0

r=0/-8

r=0

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