Válasz:
# (x, y) = (-4, -1) #
Magyarázat:
# 2x + y = -9 #
# -2x-3y = 11 #
hozzátéve, -2y = 2
# Y = -1 #
#x = 1/2 (-9 -y) = 1/2 (-9 - -1) = -4 #
# (x, y) = (-4, -1) #
Jelölje be:
# 2 (-4) + -1 = -9 quad sqrt #
# -2 (-4) -3 (-1) = 8 + 3 = 11 quad sqrt #