\(x-\dfrac{1}{2}=-\dfrac{2}{3}\\ x=-\dfrac{2}{3}+\dfrac{1}{2}\\ x=-\dfrac{4}{6}+\dfrac{3}{6}\\ x=-\dfrac{1}{6}\\ x-\dfrac{1}{15}=\dfrac{1}{10}\\ x=\dfrac{1}{10}+\dfrac{1}{15}\\ x=\dfrac{15}{150}+\dfrac{10}{150}\\ x=\dfrac{25}{150}\\ x=\dfrac{1}{6}\\ x-\dfrac{3}{5}=-\dfrac{2}{3}\\ x=-\dfrac{2}{3}+\dfrac{3}{5}\\ x=-\dfrac{10}{15}+\dfrac{9}{15}\\ x=-\dfrac{1}{15}\)
a)\(x=-\dfrac{4}{6}+\dfrac{3}{6}=-\dfrac{1}{6}\)
b)\(x=\dfrac{3}{30}+\dfrac{2}{30}=\dfrac{1}{6}\)
c)\(x=-\dfrac{10}{15}+\dfrac{9}{15}=-\dfrac{1}{15}\)
x - \(\dfrac{1}{2}\) = \(-\dfrac{2}{3}\) x - \(\dfrac{1}{15}\) = \(\dfrac{1}{10}\) x - \(\dfrac{3}{5}\) = \(-\dfrac{2}{3}\)
x = \(-\dfrac{2}{3}\) + \(\dfrac{1}{2}\) x = \(\dfrac{1}{10}\) + \(\dfrac{1}{15}\) x = - \(\dfrac{2}{3}\) + \(\dfrac{3}{5}\)
x = -\(\dfrac{1}{6}\) x = \(\dfrac{1}{6}\) x = \(\dfrac{-1}{15}\)