math problems, i went to florida and missed two weeks of school so my teachers had not taught me this math yet so i don't really know how to do it. two different problems im stuck on, you'll prolly lol at this but anyways.
9 15
- = -
x 2
In word form 9 over x is equal to 15 over 2
the other one is
y 6
- = -
5 17

please help.