-5r-6r=-9r-20

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Solution for -5r-6r=-9r-20 equation: 



-5r-6r=-9r-20

We move all terms to the left:

-5r-6r-(-9r-20)=0

We add all the numbers together, and all the variables

-11r-(-9r-20)=0

We get rid of parentheses

-11r+9r+20=0

We add all the numbers together, and all the variables

-2r+20=0

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

-2r=-20

r=-20/-2

r=+10

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