Odpowiedzi

2010-04-12T17:01:46+02:00
X = Jan
3x = Tomek
3x + 16 = Kasia

x + 3x + 3x + 16 = 303
7x + 16 = 303
7x = 303 - 16
7x = 287
x = 287 : 7
x = 41 <---Jan
3 * 41 = 123 <---Tomek
123 + 16 = 139 <---Kasia
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2010-04-12T17:06:22+02:00
X samochody Jana
3x - samochody Tomka
16 + 3x= samochody Kasi

x+3x+16+3x=303
7x=303-16
7x=287 /:7
x=41

41- samochody Jana
3 * 41 = 123
16+ 123= 139

Proszę :)
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