Asked by Irene

If r = 5 z then 15 z = 3 y, then r =

1. y
2. 2 y
3. 5 y
4. 10 y
5. 15 y
Answered by bobpursley
Multiply the first equation by 3
3r=15z

which means 3r=3y, which means r=....
Answered by Irene
Now I get it. Haha, I've been trying to solve this for hours.
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