Notam numarul cu x.
Diferenta dintre jumatatea lui x si sfertul sau este mai mica cu 63 decat treimea sa:[tex]\frac{x}{2} -\frac{x}{4} = \frac{x}{3} - 63\\\\\\Amplificam: \frac{2x-x}{4} = \frac{x}{3} - 63\\\\\\\frac{x}{4} - \frac{x}{3} = -63\\\\\frac{3x-4x}{12} = -63\\\\\frac{-x}{12} = -63\\\\\frac{x}{12} = 63\\\\x=63 * 12\\\\x=756[/tex]
