\(x-\dfrac{3}{6}=\dfrac{28}{6}-\dfrac{1}{2}\\ x-\dfrac{3}{6}=\dfrac{28}{6}-\dfrac{3}{6}\\ x-\dfrac{3}{6}=\dfrac{25}{6}\\ =>x=\dfrac{25}{6}+\dfrac{3}{6}=\dfrac{28}{6}=\dfrac{14}{3}\)
\(x-\dfrac{3}{6}=\dfrac{28}{6}-\dfrac{1}{2}\)
\(x-\dfrac{3}{6}=\dfrac{28-3}{6}=\dfrac{25}{6}\)
\(=>x=\dfrac{25}{6}+\dfrac{3}{6}=\dfrac{25+3}{6}=\dfrac{28}{6}=\dfrac{4}{1}\)