Question

x + \(\dfrac{x}{2}\)+\(\dfrac{x}{3}\)+\(\dfrac{x}{6}\)= -12

Answer 1

\(x+\dfrac{x}{2}+\dfrac{x}{3}+\dfrac{x}{6}=-12\)

\(\Leftrightarrow\dfrac{12x}{12}+\dfrac{6x}{12}+\dfrac{4x}{12}+\dfrac{2x}{12}=\dfrac{-144}{12}\)

\(\Leftrightarrow12x+6x+4x+2x=-144\)

\(\Leftrightarrow24x=-144\)

\(\Leftrightarrow x=-\dfrac{144}{24}=-6\)

Vậy \(x=-6\)