\(\frac{9}{2}\) \(-\) ( \(x\) \(-\) \(\frac{3}{4}\) ) = \(\frac{25}{4}\)
\(x\) \(-\) \(\frac{3}{4}\) = \(\frac{9}{2}\) \(-\) \(\frac{25}{4}\)
\(x\) \(-\) \(\frac{3}{4}\) = \(-\frac{7}{4}\)
\(x\) = \(-\frac{7}{4}\) \(+\) \(\frac{3}{4}\)
\(x\) = \(-1\)
\(4\) \(+\) \(x\) \(+\) \(\frac{3}{4}\) = \(\frac{17}{2}\)
( \(4\) \(+\) \(\frac{3}{4}\)) \(+\)\(x\) = \(\frac{17}{2}\)
\(\frac{19}{4}\) \(+\) \(x\) = \(\frac{17}{2}\)
\(x\) = \(\frac{17}{2}\) \(-\) \(\frac{19}{4}\)
\(x\) = \(\frac{15}{4}\)
\(\frac{5}{7}\) \(+\) \(\frac{4}{5}\) \(-\) \(x\) = \(\frac{9}{7}\)
\(\frac{53}{35}\) \(-\) \(x\) = \(\frac{9}{7}\)
\(x\) = \(\frac{53}{35}\) \(-\) \(\frac{9}{7}\)
\(x\) = \(\frac{8}{35}\)
- Hok T -
4 + x + 3/4= 17/2
5/7 + 4/5 - x = 9/7
mình nhầm