Odpowiedzi

2010-03-28T14:44:41+02:00
5 * 3 - 19 = 6
3 * (5+2) =21
2 2 2
2010-03-28T14:44:54+02:00
5 x y - 19 = 6
5y = 6 + 19
5y = 25 | :5
y = 5

3 x (x + 2) = 21
3x + 6 = 21
3x = 21 - 6
3x = 18 | :3
x = 6

"x" to miało być mnożenie? ;/
1 1 1
2010-03-28T14:45:21+02:00
5 × y - 19 = 6
5xy=6+19
5xy=25



3 × (x + 2) = 21
3X²+6X=21

dasz naj ?!
1 5 1