Câu hỏi của Gamming Mini

\(2\dfrac{3}{4}-\dfrac{7}{13}x=\left(-\dfrac{1}{2}\right)^{2019}:\left(-\dfrac{1}{2}\right)^{2018}\)\(\Rightarrow\dfrac{11}{4}-\dfrac{7}{13}x=-\dfrac{1}{2}\)\(\Rightarrow\dfrac{7}{13}x=\dfrac{13}{4}\Rightarrow x=\dfrac{169}{28}\)Câu trả lời: \(2\dfrac{3}{4}-\dfrac{7}{13}x=\left(-\dfrac{1}{2}\right)^{2019}:\left(-\dfrac{1}{2}\right)^{2018}\)\(\Rightarrow\dfrac{11}{4}-\dfrac{7}{13}x=-\dfrac{1}{2}\)\(\Rightarrow\dfrac{7}{13}x=\dfrac{13}{4}\Rightarrow x=\dfrac{169}{28}\)