Sagot:
# x = -1 #, # y = 0 # at # z = 1 #
Paliwanag:
# -4x + 4y + 5z-5 * (- 2x + 2y + z) = 9-5 * 3 #
# 6x-6y = -6 #, kaya # 6x = 6y-6 # o # x = y-1 #
Kaya, # -4 * (y-1) + 5y = 4 #
# y + 4 = 4 #, dahil dito # y = 0 # at # x = -1 #
Kaya, # (- 4) * (- 1) + 4 * 0 + 5z = 9 #
# 5z + 4 = 9 #, dahil dito # 5z = 5 # at # z = 1 #
