6y+5x=9 --> 5x=9-6y
5x-2y=0 --> 9-6y-2y=0
9-8y=0
-8y=-9
y=1,125
6×1,125+5x=9. 5x-2×1,25=0
6,75+5x=9. 5x=2,5
5x=9-6,75. x=0,5
5x=2,25
x=0,45
(0,45 ; 1,125) (0,5 ; 1,125)
6y+5x=9 --> 5x=9-6y
5x-2y=0 --> 9-6y-2y=0
9-8y=0
-8y=-9
y=1,125
6×1,125+5x=9. 5x-2×1,25=0
6,75+5x=9. 5x=2,5
5x=9-6,75. x=0,5
5x=2,25
x=0,45
(0,45 ; 1,125) (0,5 ; 1,125)