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3x - druga liczba
3x - x = 8
2x = 8/ :2
x = 4
Te liczby to: 4 i 12 (4*3=12)
2 liczba ----3x
3x - x = 8
2x = 8
x = 8 : 2
x = 4
1 liczba ---- x = 4
2 liczba ----3x = 3 * 4 = 12