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- ♥™Lv 41 decade agoFavorite Answer
r=q/18

because:

q/r=18r/r so the r's cancel

(q)q/r=(q)1/18

r=q/18

and if you try and numbers, it would work!

hope this helps!

- 1 decade ago
The process is to divide both sides by 18. This makes q/18=1r.

You can just drop the 1 and leave r, as in the first example.

- 1 decade ago
r=q/18

Divide each side by 18.

On the right side 18/18=1 r*1=r

On the left side q/18

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