Big time help please!

Question

Kathi and Robert Hawn had a pottery stand at the annual Skippack Craft Fair. They sold some of their pottery at the original price of $ 10.50 each, but later decreased the price of each by $3.00 If they sold all 87 pieces and took in $ 730.50 find how many they sold at the original price and how many they sold at the reduced price.

Answer 1

p represents the number of pots at 10.50

87 - p represents the number of pots at 7.50

10.50p + 3(87 - p) = 730.50

Can you solve for p and answer?