Odpowiedzi

2010-02-04T21:00:07+01:00
9x+8y=1 / *6
5x-6y=11 / *8

54x + 48y=6
40x-48y=88
+ ----------------
94x=94
x=1
9+8y=1
y= -1
2010-02-04T21:00:42+01:00
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