-2r-18=18-11r

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Solution for -2r-18=18-11r equation: 



-2r-18=18-11r

We move all terms to the left:

-2r-18-(18-11r)=0

We add all the numbers together, and all the variables

-2r-(-11r+18)-18=0

We get rid of parentheses

-2r+11r-18-18=0

We add all the numbers together, and all the variables

9r-36=0

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

9r=36

r=36/9

r=4

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