-9r-10=-5r+10

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Solution for -9r-10=-5r+10 equation: 



-9r-10=-5r+10

We move all terms to the left:

-9r-10-(-5r+10)=0

We get rid of parentheses

-9r+5r-10-10=0

We add all the numbers together, and all the variables

-4r-20=0

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

-4r=20

r=20/-4

r=-5

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