-18+12r=13r-9+10

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Solution for -18+12r=13r-9+10 equation: 



-18+12r=13r-9+10

We move all terms to the left:

-18+12r-(13r-9+10)=0

We add all the numbers together, and all the variables

12r-(13r+1)-18=0

We get rid of parentheses

12r-13r-1-18=0

We add all the numbers together, and all the variables

-1r-19=0

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

-r=19

r=19/-1

r=-19

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