Răspuns :
2x-6y=4
3x-2y=5 | •(-3)
2x-6y=4
-9x+6y=-15
___________(+)
-7x=-11 | : (-7)
x= 11/7
2 • 11/7 -6y=4
-6y= 4-22/7
-6y= (28-22)/7
-6y= 6/7 |:(-6)
y= 6/7•(-1/6)
y= -1/7
3x-2y=5 | •(-3)
2x-6y=4
-9x+6y=-15
___________(+)
-7x=-11 | : (-7)
x= 11/7
2 • 11/7 -6y=4
-6y= 4-22/7
-6y= (28-22)/7
-6y= 6/7 |:(-6)
y= 6/7•(-1/6)
y= -1/7