Question

(x + 2\(\dfrac{1}{4}\)) : ( - \(\dfrac{5}{6}\) ) = 3                              

Answer 1

\(\left(x+2\dfrac{1}{4}\right):\left(-\dfrac{5}{6}\right)=3\)

\(\Rightarrow\left(x+\dfrac{9}{4}\right):\left(-\dfrac{5}{6}\right)=3\)

\(\Rightarrow x+\dfrac{9}{4}=3.-\dfrac{5}{6}\)

\(\Rightarrow x+\dfrac{9}{4}=-\dfrac{5}{2}\)

\(\Rightarrow x=-\dfrac{19}{4}\)

Answer 2

Đề hỏi chi rứa em?

Answer 3

=>x+9/4=3*(-5/6)=-5/2

=>x=-5/2-9/4=-19/4