a) \(x=13,32:\dfrac{3}{7}=\dfrac{13,32.7}{3}=\dfrac{93,24}{3}=31,08\)
b) \(93,24:3=31,08\)
\(\Rightarrow31,08.3=93,24\) (*)
\(13,32.7=93,24\)
\(\Rightarrow93,24:7=13,32\) (**)
\(x=31,08:\dfrac{7}{3}=\dfrac{31,08.3}{7}=\dfrac{93,24}{7}=13,32\)
\(a,13,32:\dfrac{3}{7}=13,32.\dfrac{7}{3}=13,32.7:3=31,08\)(theo đầu bài cho rùi mak)
\(b,31,08:\dfrac{7}{3}=31.08.\dfrac{3}{7}=31,08.3:7=13.32\)