-18r-19=-1

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Solution for -18r-19=-1 equation: 



-18r-19=-1

We move all terms to the left:

-18r-19-(-1)=0

We add all the numbers together, and all the variables

-18r-18=0

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

-18r=18

r=18/-18

r=-1

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