Find the value of each shape. PLEASE HELP! I WILL GIVE BRAINLIEST!

Answer:
Triangle = 1 1/2
Square = 10
Step-by-step explanation:
Given:
Triangle + Triangle + Square + Square = 23
Square - Triangle = 4 1/2
10 + 10 + 1 1/2 + 1 1/2 = 23
Hence, Square = 10 and Triangle = 1 1/2
~Lenvy~