9x+8y=1 5x-6y=11

9x+8y=1 / *6 5x-6y=11 / *8 54x + 48y=6 40x-48y=88 + ---------------- 94x=94 x=1 9+8y=1 y= -1

9x+8y=1 /*3 5x-6y=11 /*4 27x+24y=3 20x-24y=44 47x=47 /:47 x=1 -6y=11-5 -6y=6 /:(-6) y=-1 x=1 y=-1