5r=-9+8r

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Solution for 5r=-9+8r equation: 



5r=-9+8r

We move all terms to the left:

5r-(-9+8r)=0

We add all the numbers together, and all the variables

5r-(8r-9)=0

We get rid of parentheses

5r-8r+9=0

We add all the numbers together, and all the variables

-3r+9=0

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

-3r=-9

r=-9/-3

r=+3

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