Question

GIÁ TRỊ TUYỆT ĐỐI CỦA [x-2/3]-5/6=-3/4 giúp với 

 

Answer 1

\(\left|x-\dfrac{2}{3}\right|-\dfrac{5}{6}=-\dfrac{3}{4}\)

\(\Rightarrow\left|x-\dfrac{2}{3}\right|=\dfrac{1}{12}\)

\(\Rightarrow\left[{}\begin{matrix}x-\dfrac{2}{3}=\dfrac{1}{12}\\x-\dfrac{2}{3}=-\dfrac{1}{12}\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=\dfrac{3}{4}\\x=\dfrac{7}{12}\end{matrix}\right.\)