Its about buying things

Question

Mary bought 5 pairs of gloves and 2 hats for $95. Mary received a text from her friend Joanna ask her to buy 4 pairs of gloves and a hat. Mary told Joanna that the cost was $70. How much does each pair of gloves cost? How much does the hat cost?

Answer 1

5G + 2H = 95

4G + H =70

8G + 2H = 140

5G +2H =95

3G =45

G =15 = $15 for a pair of gloves

H = 70-4G = 70-60 = $10 for a hat