Odpowiedź:
[tex]\frac{5}{6}=\frac{2}{x}\ \ \ \ x\neq 0\\\\5x=12\ \ /:5\\\\x=\frac{12}{5}\\\\x=2\frac{2}{5}\\\\\\\frac{x}{7}=\frac{8}{9}\\\\9x=56\ \ /:9\\\\x=\frac{56}{9}\\\\x=6\frac{2}{9}\\\\\\\frac{3}{5}=\frac{x}{6}\\\\18=5x\\\\5x=18\ \ /:5\\\\x=\frac{18}{5}\\\\x=3\frac{3}{5}[/tex]
