2a + b – c = 9 a + 3b – 2c = 3a – b + 5c = 2 By Admin ReiPosted on October 28, 2022 2a + b – c = 9 a + 3b – 2c = 3a – b + 5c = 2 2.4 + 2 – 14 + 3.2 – 2.1 = 4+6-2 =8