\(\dfrac{2}{3}\) x = \(\dfrac{4}{7}\) \(\dfrac{-6}{5}\) x = \(\dfrac{1}{2}\)
x = \(\dfrac{4}{7}\) : \(\dfrac{2}{3}\) x = \(\dfrac{1}{2}\) : ( -\(\dfrac{6}{5}\))
x = \(\dfrac{6}{7}\) x = \(-\dfrac{5}{12}\)
c, \(\dfrac{2}{3}\) x = - \(\dfrac{1}{4}\) \(\dfrac{3}{4}\) x = \(\dfrac{2}{-7}\)
x = - \(\dfrac{1}{4}\) : \(\dfrac{2}{3}\) x = \(\dfrac{2}{-7}\) : \(\dfrac{3}{4}\)
x = \(\dfrac{-3}{8}\) x = - \(\dfrac{8}{21}\)
\(a,\dfrac{2}{3}.x=\dfrac{4}{7}\)
\(x=\dfrac{4}{7}:\dfrac{2}{3}\)
\(x=\dfrac{4}{7}.\dfrac{3}{2}\)
\(x=\dfrac{12}{14}=\dfrac{6}{7}\)
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\(b,\dfrac{-6}{5}.x=\dfrac{1}{2}\)
\(x=\dfrac{1}{2}:\dfrac{-6}{5}\)
\(x=\dfrac{1}{2}.\dfrac{-5}{6}\)
\(x=\dfrac{-5}{12}\)
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\(c,\dfrac{2}{3}.x=\dfrac{-1}{4}\)
\(x=\dfrac{-1}{4}:\dfrac{2}{3}\)
\(x=\dfrac{-1}{4}.\dfrac{3}{2}\)
\(x=\dfrac{-3}{8}\)
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\(d,\dfrac{3}{4}.x=\dfrac{2}{-7}\)
\(x=\dfrac{2}{-7}:\dfrac{3}{4}\)
\(x=\dfrac{2}{-7}.\dfrac{4}{3}\)
\(x=\dfrac{-8}{21}\)