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4x+2x+x=168
7x=168/:7
x=24
Odp. Ta liczba to 24.
Pozdrawiam
½x + ¼x + ⅛x = 21
4/8x + 2/8x + ⅛x = 21
7/8x = 21
x = 21 ÷ 7 / 8
x = 21 * 8 / 7
x = 24
Ania wybrała liczbę 24.