Question

Tìm x:

-2/5 : (3x – 3/4) = 1/8

Answer 1

\(\Leftrightarrow3x-\dfrac{3}{4}=-\dfrac{2}{5}:\dfrac{1}{8}\)

\(\Leftrightarrow3x-\dfrac{3}{4}=-\dfrac{16}{5}\)

\(\Leftrightarrow3x=-\dfrac{49}{20}\)

\(\Leftrightarrow x=-\dfrac{49}{60}\)

Answer 2

\(\dfrac{-2}{5}:\left(3x-\dfrac{3}{4}\right)=\dfrac{1}{8}\)

\(3x-\dfrac{3}{4}=\dfrac{-2}{5}:\dfrac{1}{8}\)

\(3x-\dfrac{3}{4}=\dfrac{-16}{5}\)

\(3x=\dfrac{-16}{5}+\dfrac{3}{4}\)

\(3x=\dfrac{-49}{20}\)

\(x=\dfrac{-49}{20}:3\)

\(x=\dfrac{-49}{60}\)