18=r+6-3r

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Solution for 18=r+6-3r equation:



18=r+6-3r
We move all terms to the left:
18-(r+6-3r)=0
We add all the numbers together, and all the variables
-(-2r+6)+18=0
We get rid of parentheses
2r-6+18=0
We add all the numbers together, and all the variables
2r+12=0
We move all terms containing r to the left, all other terms to the right
2r=-12
r=-12/2
r=-6

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