대답: # y = 6 # # x = -4 # 설명: # -3x-2y = 0 # # 9x + 5y = -6 # # -2y = 3x # # 9x = -5y-6 # # y = -3x / 2 # # 9x = 15x / 2-6 # # y = -3x / 2 # # 18x = 15x-12 # # y = -3x / 2 # # 3x = -12 # # y = 12 / 2 # # x = -4 # # y = 6 # # x = -4 #