Nghiệm của phương trình \(-\dfrac{4}{5}x+\dfrac{1}{2}=-\dfrac{1}{3}x+1\) là
\(x=-\dfrac{15}{14}\).\(x=\dfrac{15}{14}\).\(x=-\dfrac{3}{7}\).\(x=\dfrac{4}{7}\).Hướng dẫn giải:\(-\dfrac{4}{5}x+\dfrac{1}{2}=-\dfrac{1}{3}x+1\)
\(\Leftrightarrow-\dfrac{4}{5}x+\dfrac{1}{3}x=1-\dfrac{1}{2}\)
\(\Leftrightarrow-\dfrac{7}{15}x=\dfrac{1}{2}\)
\(\Leftrightarrow x=\dfrac{1}{2}:\dfrac{-7}{15}\)
\(\Leftrightarrow x=-\dfrac{15}{14}\)
