\(\frac{7}{4}-x\cdot\frac{4}{3}=\frac{5}{19}\)
\(\Rightarrow-x\cdot\frac{4}{3}=\frac{5}{19}-\frac{7}{4}\)
\(\Rightarrow-x\cdot\frac{4}{3}=-\frac{113}{76}\)
\(\Rightarrow x\cdot\frac{4}{3}=\frac{113}{76}\)
\(\Rightarrow x=\frac{113}{76}:\frac{4}{3}=\frac{339}{304}\)