The difference between two numbers is 36. Four times the smaller is equal to 3 more than the larger. What are the numbers?
x - y = 36 → x = 36 + y (1)
4y = x + 3 (2)
Sub (1) into (2)
4y = (36 + y) + 3
4y - y = 39
3y = 39
y = 39 / 3 = 13
x = 36 + 13 = 49
