2/ 3 x+ 2 2/3y - 1 7/ 9= o
3/ 4 x + 6y+ 1=0
rozwiazać ukąłd ównań metodą przeciwnych współczynników
2/3 x+ 2 2/3y - 1 7/ 9= o / * 9
3/4x+6y+1=0 /* (-4)
6x+24y-16=0
-3x -24y - 4=0
6x+24y=16
-3x-24y=4
.................
3x=20
x=20/3
6 * 20/3 + 24y -16 =0
24y= -24
y= -1
x= 20/3 = 6 2/3
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2/3 x+ 2 2/3y - 1 7/ 9= o / * 9
3/4x+6y+1=0 /* (-4)
6x+24y-16=0
-3x -24y - 4=0
6x+24y=16
-3x-24y=4
.................
3x=20
x=20/3
6x+24y-16=0
6 * 20/3 + 24y -16 =0
24y= -24
y= -1
x= 20/3 = 6 2/3
y= -1