Question

Answer 1

a. \(\Leftrightarrow\dfrac{1}{9}x=-\dfrac{1}{9}\\ \Leftrightarrow x=-1\)

b. \(\Leftrightarrow-\dfrac{3}{4}x=\dfrac{7}{2}\\ \Leftrightarrow x=-\dfrac{14}{3}\)

c. \(\Leftrightarrow\left|2x-\dfrac{1}{3}\right|=\dfrac{5}{2}\\ \Leftrightarrow\left[{}\begin{matrix}2x-\dfrac{1}{3}=\dfrac{5}{2}\\2x-\dfrac{1}{3}=-\dfrac{5}{2}\end{matrix}\right.\\ \Leftrightarrow\left[{}\begin{matrix}x=\dfrac{17}{12}\\x=-\dfrac{13}{12}\end{matrix}\right.\)