10x + 5y = 190

5x + 10y = 185

15x + 15y =
375

10x + 5y = 190

5x + 10y = 185

() ()
()

5x – 5y = 5

x + y = 25

x – y = 1

2x = 26

10x + 5y = 190

5x + 10y = 185

15x + 15y =
375

10x + 5y = 190

5x + 10y = 185

() ()
()

5x – 5y = 5

x + y = 25

x – y = 1

2x = 26
