uklad rownan liniowych
x - y = 3
x - y = 1
drugi przyklad
x - 3 = -2
2x - y = 1
pomocy porztebuje na dzisiaj
x-y=3
x-y=1
x=3+y
3-y-y=1
-2y=1-3
-2y=-2/:(-2)
y=1
x=3+1=4
x=4
x-3=-2
2x-y=1
x=-2+3=1
2*1-y=1
x=1
-y=1-2
-y=-1/:(-1}
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x-y=3
x-y=1
x=3+y
3-y-y=1
x=3+y
-2y=1-3
x=3+y
-2y=-2/:(-2)
x=3+y
y=1
x=3+1=4
y=1
x=4
x-3=-2
2x-y=1
x=-2+3=1
2*1-y=1
x=1
-y=1-2
x=1
-y=-1/:(-1}
x=1
y=1