Rozwiaz układ rownan.
a)
x-y= -2
3x-y=x+1
b)
3x+2y=1
5x+4y=3
c)
x+10y=20
7x+5y=10
3x-x-y=1
2x-y=1/2
x=0,5
5xy=1/5
x=0/2
8xy=3/8
xy=3/8
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3x-y=x+1
3x-x-y=1
2x-y=1/2
x=0,5
3x+2y=1
5xy=1/5
x=0/2
5x+4y=3
8xy=3/8
xy=3/8