Antwoord: # X = 2, y = -3 # Uitleg: Let daar op # Y-x = -5 # #implies y = x-5 # Zet waarde van # Y # in # 2y + x = -4 # # 2 (x-5) + x = -4 # #implies 2x-10 + x = -4 # #implies 3x = 6 # #implies x = 2 # Zo #y = 2-5 = -3 #