7 t-shirts and a hat costs £67.00
5 t-shirts and a hat costs £49.00.
How much does a t-shirt cost?
How much does a hat cost?
7t + h = 67
5t +h = 49 subtract bottom eq from top
2t = 18 t = 9
5(t) + h = 49
5(9) + h = 49
45 + h = 49
h = 4 Edited for mistake Guest pointed out to me...Thanx !