If i sold 3 small boxes of oranges and 14 large boxes of oranges for total of $183. how much are the small and large box

X = small boxes and y = large boxes

x + y = 17 ... x = 17 - y

3x + 14y = 183

3 (17 - y) + 14y = 183

51 - 3y + 14y = 183

-3y + 14y = 183 - 51

11y = 132

y = 132/11

y = 12 < = = = large boxes (y) cost $ 12

x + y = 17

x + 12 = 17

x = 17 - 12

x = 5 < = = = small boxes (x) cost $ 5