a) 6.5 - \(\dfrac{9}{4}\): / x+ \(\dfrac{1}{3}\)/=2

b)\(\dfrac{11}{4}\)+\(\dfrac{2}{3}\):/4x - \(\dfrac{1}{5}\) / =\(\dfrac{7}{2}\)

c) (x-\(\dfrac{1}{4}\))² + / 2x - \(\dfrac{1}{2}\)= 0

tìm x biết

a) /4.x/ - / -12.5/ = / -7.3 /

b) / x / + x = \(\dfrac{1}{3}\)

c) / x / - x =\(\dfrac{3}{4}\)

d) / x-2 / = x

e) / x+2 / = x

Tớ cần gấp!! Mong các bạn giúp ..