8х+11у=678
3х+22=4y
8x+11y=678
3x-4y=-22
8x+11y=678/*3
3x-4y=-22/*8
24x+33y=2034
24x-32y=-176
24x+33y=2034
-
24x-32y=-176
65y=2210
y=34
3x=4*34-22
3x=114
x=38
8x+11y=678
3x-4y=-22
pervoe umnojim na 3 poluchem
24x+33y=3X678
a vtoroe umnojem na 8
24x-32y=-22X8
teper vichtem
33y+32y=2034+176
65y=2210
y=34
x=
