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x - pomyślana liczba
½x+¼x=45
¾x=45
x=60
1/2 x + 1/4x = 3/4 x
3/4x = 45 ÷3/4
x= 60
Odp pomyslal o liczbie 60
1/2 x + 1/4x = 3/4 x
3/4x = 45:3/4
x= 60
Odp pomyslal o liczbie 60