Answer:
see explanation
Step-by-step explanation:
Assuming you require the cost of a t- shirt and a hat
let t be t- shirt and h be hat , then
3t + 2h = 14 → (1)
2t + 7h = 15 → (2)
Multiplying (1) by 2 and (2) by - 3 and adding eill eliminate t
6t + 4h = 28 → (3)
- 6t - 21h = - 45 → (4)
Add (3) and (4) term by term to eliminate t
0 - 17h = - 17
- 17h = - 17 ( divide both sides by - 17 )
h = 1
Substitute h = 1 into either of the 2 equations and solve tor t
Substituting into (1)
3t + 2(1) = 14
3t + 2 = 14 ( subtract 2 from both sides )
3t = 12 ( divide both sides by 3 )
t = 4
The cost of a t- shirt is £4 and a hat is £1
