9-5r=-7r-9

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Solution for 9-5r=-7r-9 equation: 



9-5r=-7r-9

We move all terms to the left:

9-5r-(-7r-9)=0

We get rid of parentheses

-5r+7r+9+9=0

We add all the numbers together, and all the variables

2r+18=0

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

2r=-18

r=-18/2

r=-9

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