\frac{1}{500}x=\frac{14\frac{1}{2}-3\frac{1}{7}*2\frac{1}{3}}{2\frac{1}{7}:\frac{9}{14}+\frac{1}{4}}
\frac{1}{500}x=\frac{14\frac{1}{2}-\frac{22}{7}*\frac{7}{3}}{\frac{15}{7}:\frac{9}{14}+\frac{1}{4}}
\frac{1}{500}x=\frac{14\frac{1}{2}-\frac{22}{3}}{\frac{15}{7}*\frac{14}{9}+\frac{1}{4}}
\frac{1}{500}x=\frac{14\frac{1}{2}-7\frac{1}{3}}{\frac{5}{1}*\frac{2}{3}+\frac{1}{4}}
\frac{1}{500}x=\frac{14\frac{3}{6}-7\frac{2}{6}}{\frac{10}{3}+\frac{1}{4}}
\frac{1}{500}x=\frac{7\frac{1}{6}}{3\frac{1}{3}+\frac{1}{4}}
\frac{1}{500}x=\frac{7\frac{1}{6}}{3\frac{4}{12}+\frac{3}{12}}
\frac{1}{500}x=\frac{7\frac{1}{6}}{3\frac{1}{12}}
\frac{1}{500}x=\frac{\frac{43}{6}}{\frac{37}{12}}
\frac{1}{500}x=\frac{43}{6}*\frac{12}{37}
\frac{1}{500}x=43*\frac{2}{37}
\frac{1}{500}x=43*\frac{2}{37}
\frac{1}{500}x=\frac{86}{37}
x=\frac{86}{37}*500
x=\frac{43000}{37}=1162\frac{6}{37}
nie wiem czy się gdzieś nie pomyliłam…