Question

|-5 x | = \(\dfrac{5}{3}\)

Answer 1

\(pt\Leftrightarrow\left[{}\begin{matrix}-5x=\dfrac{5}{3}\\-5x=-\dfrac{5}{3}\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=-\dfrac{1}{3}\\x=\dfrac{1}{3}\end{matrix}\right.\Leftrightarrow x=\pm\dfrac{1}{3}\)

Vậy ........

Answer 2

 \(\left|-5x\right|=\dfrac{5}{3}\)

\(\Rightarrow\left[{}\begin{matrix}-5x=\dfrac{5}{3}\\-5x=-\dfrac{5}{3}\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=-\dfrac{1}{3}\\x=\dfrac{1}{3}\end{matrix}\right.\)

Vậy \(x=\dfrac{1}{3}\) hoặc \(x=-\dfrac{1}{3}\)

Answer 3

⇒⎡⎢ ⎢⎣−5x=53−5x=−53

x=13

 hoặc 

Answer 4

Ta có: \(\left|-5x\right|=\dfrac{5}{3}\)

nên \(\left[{}\begin{matrix}-5x=\dfrac{5}{3}\\-5x=-\dfrac{5}{3}\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=-\dfrac{1}{3}\\x=\dfrac{1}{3}\end{matrix}\right.\)