Question

Tìm x :

3/5x+1/5=-3/5

Answer 1

\(\dfrac{3}{5x}+\dfrac{1}{5}=\dfrac{-3}{5}\)

\(\dfrac{3}{5x}=\dfrac{-3}{5}-\dfrac{1}{5}\)

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

\(5x=\dfrac{3.5}{-4}\)

\(5x=\dfrac{-15}{4}\)

\(x=\dfrac{-15}{4}:5\)

\(x=\dfrac{-15}{4}.\dfrac{1}{5}\)

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

XONG RỒI ĐÓ BN

Answer 2

Ta có: \(\dfrac{3}{5x}+\dfrac{1}{5}=\dfrac{-3}{5}\)

=> \(\dfrac{3}{5x}=\dfrac{-3}{5}-\dfrac{1}{5}\)

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

=> \(3.5=-4.5x\)

=> \(15=-20x\)

=> \(x=\dfrac{15}{-20}\)

=> \(x=\dfrac{-3}{4}\)