algebra: please check
posted by bb .
p/33p/8=3
p3p/8=9
p3p=72
316
I am not sure if I did this right. Just guessing.

The answer is 72.
You should have made the denominators alike so that you could subtract the fractions easier.
p/33p/8=3
8p/24  9p/24 = 3
p/24 = 3
p= 3(24)
p= 72
p/1 = 72/1
p=72 
Easier way ...
multiply each term by the LCD, which is 24, so
8p  9p = 72
p = 72
p = 72