x:2 - x:4 = 7 - x:3 plisss wynik wynosi x=12
x/2-x/4 = 7-x/3 /·12
6x-3x = 84-4x
6x-3x+4x = 84
7x = 84 /:7
x = 12
x:2 - x:4 = 7 - x:3 /*126x - 3x = 84 - 4x6x - 3x + 4x = 847x = 84 /:7x = 12
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x/2-x/4 = 7-x/3 /·12
6x-3x = 84-4x
6x-3x+4x = 84
7x = 84 /:7
x = 12
x:2 - x:4 = 7 - x:3 /*12
6x - 3x = 84 - 4x
6x - 3x + 4x = 84
7x = 84 /:7
x = 12