Układ Równań 7x-y= -17 5x+6y+8

7x-y= -17 5x+6y=-8

7x-y=-17/6 5x+6y=8 42x-6y=-102 5x+6y=8 ----------- 47x=-94/:(47 x=-2 7*(-2)-y=-17 -14-y=-17 -y=-17+14 -y=-3/(-1) y=3 x=-2 y=3

7x-y=-17 /*6 5x+6y=8 42x-6y=-102 5x+6y=8 42x-6y+5x+6y=-102+8 47x=-94 /:47 x=-2 x=-2 5*(-2)+6y=8 x=-2 -10+6y=8 x=-2 6y=8+10 x=-2 6y=18 /:6 x=-2 y=3