Rozwiąż równanie:
x+2y=6
2x+y=3
x+2y=6/ * (-2)
-2x-4y=-12
-3y=-9/ -3
y=3
x+2*3=6
x+2y=62x+y=3
x=6-2y
2 ( 6-2y)+y =3
x= 6-2y
12 -4y +y=3
12 - 3y =3
-3y = -9 | : (-3)
y = 3
x= 6 -6
x=0
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x+2y=6
2x+y=3
x+2y=6/ * (-2)
2x+y=3
-2x-4y=-12
2x+y=3
-3y=-9/ -3
x+2y=6
y=3
x+2*3=6
x+2y=6
2x+y=3
x=6-2y
2 ( 6-2y)+y =3
x= 6-2y
12 -4y +y=3
x=6-2y
12 - 3y =3
x=6-2y
-3y = -9 | : (-3)
x=6-2y
y = 3
x= 6 -6
y=3
x=0
y=3