Answer:
x = surf boards, y = paddle boards
x + y = 44......x = 44 - y
45x + 60y = 2265
45(44 - y) + 60y = 2265
1980 - 45y + 60y = 2265
-45y + 60y = 2265 - 1980
15y = 285
y = 285/15
y = 19 <=== there were 19 paddle boards rented
x + y = 44
x + 19 = 44
x = 44 - 19
x = 25......and 25 surf boards rented
Explanation: