Tìm x.( giúp mk với ! )
a) x:\(4\dfrac{1}{3}=-2,5\)
b) x: \(\dfrac{-3}{5}=\dfrac{-10}{21}\)
c) \(\dfrac{2}{3}x-\dfrac{1}{2}=\dfrac{1}{10}\)
d) \(\dfrac{1}{2}x-\dfrac{1}{2}=\dfrac{5}{2}\)
e) \(\dfrac{-2}{3}-\dfrac{1}{3}\left(2x-5\right)=\dfrac{3}{2}\)
g) \(\dfrac{2}{5}.x+\dfrac{1}{2}=\dfrac{-3}{4}\)
h)\(\left(2x-2\dfrac{4}{5}\right):3\dfrac{1}{8}=1\dfrac{3}{5}\)
i)\(3,2x-\left(\dfrac{4}{5}+\dfrac{2}{3}\right):\dfrac{2}{3}=\dfrac{7}{20}\)
k) \(\left(\dfrac{3x}{7}+1\right):\left(-4\right)=\dfrac{-1}{28}\)
Đúng mình tick cho ạ, giúp mình với !
\(x:4\dfrac{1}{3}=2,5\\ x:\dfrac{13}{3}=\dfrac{5}{2}\\ x=\dfrac{5}{2}.\dfrac{13}{3}\\ x=\dfrac{65}{6}=10\dfrac{5}{6}\)
)
