Tìm x :
a, 150 : ( 40 : X x 2 ) = 3
b, \(\dfrac{1}{3}+x=\dfrac{1}{5}\)
c, \(x-\dfrac{1}{7}=\dfrac{1}{6}\)
d, \(\dfrac{3}{4}x\) X = \(\dfrac{4}{5}\)
e\(\dfrac{2}{5}:x\) = \(\dfrac{1}{3}\)
g, 4 x \(x-\dfrac{1}{3}=\dfrac{1}{2}\)
k,\(\dfrac{3}{2}:x+\dfrac{1}{4}=\dfrac{1}{3}\)
f ,\(\dfrac{5}{3}-(2\) x \(x+\dfrac{1}{3)}=\dfrac{2}{5}\)
m,\(\dfrac{4}{3}\) x\((\dfrac{1}{2}\) \(x-\dfrac{1}{2})=\dfrac{5}{3}\)x
n'\(\dfrac{1}{2}:(\dfrac{1}{3}\) x \(x+\dfrac{1}{4})=2\)
h , \(\dfrac{7}{2}-(2\) x \(x\dfrac{1}{3}):2=\dfrac{1}{3}\)