Układ równań, podajcie wyniki równań:?
a) (4x-2y=8
(x-3y=4
b) (2y-2x=6
(x-3y=8
(x-3y=4 /*(-4)
4x-2y=8
-4x+12y=-16
10y=-8
y=-0,8
4x+1,6=8
4x=6,4
x=1,6
(x-3y=8 /*2
-2x+2y=6
2x-6y=16
-4y=22
y=-5,5
x+16,5=8
x=-8,5
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a) (4x-2y=8
(x-3y=4 /*(-4)
4x-2y=8
-4x+12y=-16
10y=-8
y=-0,8
4x+1,6=8
4x=6,4
x=1,6
b) (2y-2x=6
(x-3y=8 /*2
-2x+2y=6
2x-6y=16
-4y=22
y=-5,5
x+16,5=8
x=-8,5