Odpowiedzi

2009-12-13T18:20:23+01:00
X+y=56
3x+0,5y=83

x=56-y
3(56-y)+0,5y=83

x=56-y
168-3y+0,5y=83

x=56-y
-2,5y=83-168

x=56-y
-2,5y=-85 /:-2,5

x=56-y
y=34

x=56-34
y=34

x=22
y=34

odp. Pierwsza liczba wynosi 22, a druga 34
1 5 1
2009-12-13T18:21:23+01:00
{x+y=56
3x+½y=83

{x=56-y
3(56-y)+½y=83

168-3y+½y=83
-2,5y=-85
y=34
x+y=56
x+34=56
x=22