\(x=\dfrac{19}{20}-\dfrac{3}{4}=\dfrac{19}{20}-\dfrac{15}{20}\\ =>x=\dfrac{4}{20}=\dfrac{1}{5}\)
\(x=\dfrac{19}{20}-\dfrac{3}{4}=\dfrac{19-15}{20}=\dfrac{4}{20}=\dfrac{1}{5}\)
\(x=\dfrac{19}{20}-\dfrac{3}{4}\)
\(x=\dfrac{1}{5}\)
\(x=\dfrac{19}{20}-\dfrac{3}{4}\)
\(x=\dfrac{19}{20}-\dfrac{15}{20}\)
\(x=\dfrac{4}{20}\)
\(x=\dfrac{1}{5}\)