rozwiaz uklady rownan:
A.
x-y:3-x+y:2=-1/2
x+y=3
B.
x(x-6)-x(y+x)=y(3-x)
2x+y=0
x-y/3 - x+y/2 = -1/2
x=3-y
(3-y)-y/3 - (3-y)+y/2 = -1/2
3-y-y/3 - 3-y+y= -1/2
3-2y/3-3/2=-1/2
3-2y/3=-1/2+3/2
3-2y/3=1/*3
3-2y=3
-2y=0
y=0
x+0=3
x=3
(3,0)
Drugi przykład
x^2-6x-xy-x^2=3y-xy
-6x-xy-3y+xy=0
-6x-3y=0/:3
-2x-y=0
0=0
Nieskończenie wiele rozwiązań
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x-y/3 - x+y/2 = -1/2
x+y=3
x=3-y
(3-y)-y/3 - (3-y)+y/2 = -1/2
3-y-y/3 - 3-y+y= -1/2
3-2y/3-3/2=-1/2
3-2y/3=-1/2+3/2
3-2y/3=1/*3
3-2y=3
-2y=0
y=0
x+y=3
x+0=3
x=3
y=0
(3,0)
Drugi przykład
x(x-6)-x(y+x)=y(3-x)
2x+y=0
x^2-6x-xy-x^2=3y-xy
2x+y=0
-6x-xy-3y+xy=0
2x+y=0
-6x-3y=0/:3
2x+y=0
-2x-y=0
2x+y=0
0=0
Nieskończenie wiele rozwiązań