-9r+5=r-5

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Solution for -9r+5=r-5 equation: 



-9r+5=r-5

We move all terms to the left:

-9r+5-(r-5)=0

We get rid of parentheses

-9r-r+5+5=0

We add all the numbers together, and all the variables

-10r+10=0

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

-10r=-10

r=-10/-10

r=1

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