# 2x + 3y = -5 …………….. (i) #
# -2x-12y = 4 ……………. (II) #
hozzáad #(én)# és # (II) #
#egy 2x-2x + 3y-12y = -5 + 4 #
#implies -9y = -1 #
# Impliesy = 1/9 #
tesz # Y = 1/9 # ban ben #(én)#
# = 2x + 3 * 1/9 = -5 #
# = 2x + 1/3 = -5 #
#xx + 1 = -15 #
#xx = -16 #
# = x = -8 / 3 #
