The system of linear equations that relates x and y: x= 15 + y 5 x = 2 y+ 525 We will solve this system using substitution method: 5(15 + y)=2 y + 525 75 + 5 y = 2 y + 525 5 y - 2 y = 525 - 75 3 y = 450, y = 450 : 3 y = 150 x = 15 + y x = 15 + 150 x = 165 Answer: Aaron´s height is 165 cm and Peter´s height is 150 cm.
