Odpowiedzi

2010-03-14T11:13:54+01:00
X+y=32
x-y=-4

2x=28
x=14
14+y=32
y=18
2010-03-14T11:15:22+01:00
I. x+y=32
II. x-y=-4
z I. x=32-y
do II. 32-y-y=-4
-2y=-4-32
-2y=-36 /:(-2)
y=18
x=32-18=14
Odp.Te liczby to 14 i 18.
Najlepsza Odpowiedź!
2010-03-14T11:16:07+01:00
X+y=32
x-y=-4

x=32-y
32-y-y=-4

x=32-y
32-2y=-4

x=32-y
-2y=-36/:(-2)

x=32-y
y=18

y=18
x=32-18

y=18
x=14