Odpowiedzi

2009-10-15T16:22:34+02:00
X - 1 bok
y - 2 bok
{2x+2y= 32
{x+4=y /× 2

{2x+2y= 32
{2x-2y=-8
4x=24
{x=6
{y=6+4

{x=6
{y=10

  • Użytkownik Zadane
2009-10-15T16:28:39+02:00
2a + 2b = 32
a - b = 4 /*2

2a + 2b = 32
2a - 2b = 8

4a = 40 /:4
a = 10

b = a - 4
b = 6