\( \dfrac{1}{2}x - \dfrac{7}{8} = \dfrac{5}{6}x - \dfrac{1}{{16}}\\ \Leftrightarrow \dfrac{1}{2}x - \dfrac{5}{6}x = - \dfrac{1}{{16}} + \dfrac{7}{8}\\ \Leftrightarrow - \dfrac{1}{3}x = \dfrac{{13}}{6}\\ \Leftrightarrow x = \dfrac{{13}}{6}:\left( { - \dfrac{1}{3}} \right)\\ \Leftrightarrow x = - \dfrac{{39}}{{16}} \)
Ta sử dụng quy tắc chuyển vế:
\(\frac{1}{2}x-\frac{7}{8}=\frac{5}{6}x-\frac{1}{16}\)
\(\frac{1}{2}x-\frac{5}{6}x=-\frac{1}{16}+\frac{7}{8}\)
\(\frac{3}{6}-\frac{5}{6}x=-\frac{1}{16}+\frac{14}{16}\)
\(-\frac{1}{3}x=\frac{13}{16}\)
\(x=\frac{13}{16}:\left(-\frac{1}{3}\right)\)
\(x=-\frac{39}{16}\)
Hok tốt
\(\frac{1}{2}x-\frac{7}{8}=\frac{5}{6}x-\frac{1}{16}\\ \Leftrightarrow\frac{1}{2}x-\frac{5}{6}x=\frac{7}{8}-\frac{1}{16}\\ \frac{-1}{3}x=\frac{13}{16}\\ \Rightarrow x=\frac{-39}{16}\)
Vậy \(x=\frac{-39}{16}\)
\(\frac{1}{2}x-\frac{7}{8}=\frac{5}{6}x-\frac{1}{16}\)
⇒ \(\frac{1}{2}x-\frac{5}{6}x=\left(-\frac{1}{16}\right)+\frac{7}{8}\)
⇒ \(-\frac{1}{3}x=\frac{13}{16}\)
⇒ \(x=\frac{13}{16}:\left(-\frac{1}{3}\right)\)
⇒ \(x=-\frac{39}{16}\)
Chúc bạn học tốt!
