18r-9=-207

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Solution for 18r-9=-207 equation: 



18r-9=-207

We move all terms to the left:

18r-9-(-207)=0

We add all the numbers together, and all the variables

18r+198=0

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

18r=-198

r=-198/18

r=-11

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