`@` `\text {Ans}``\downarrow`\(\dfrac{2}{3}\times x-\dfrac{x}{2}-\dfrac{1}{2}=\dfrac{1}{4}?\)`=>`\(\dfrac{2}{3}x-\dfrac{x}{2}-\dfrac{1}{2}=\dfrac{1}{4}\)`=>`\(\dfrac{4x}{6}-\dfrac{3x}{6}-\dfrac{1}{2}=\dfrac{1}{4}\)`=>`\(\dfrac{x}{6}-\dfrac{1}{2}=\dfrac{1}{4}\)`=>`\(\dfrac{x}{6}=\dfrac{1}{4}+\dfrac{1}{2}\)`=>`\(\dfrac{x}{6}=\dfrac{3}{4}\)`=> 4x=3*6``=> 4x=18``=> x=`\(\dfrac{18}{4}=\dfrac{9}{2}=4,5\)Vậy, `x=4,5.`\(\href{https://hoc24.vn/vip/14874167551162}{\text{_KaizulvG_}}\)Câu trả lời: `@` `\text {Ans}``\downarrow`\(\dfrac{2}{3}\times x-\dfrac{x}{2}-\dfrac{1}{2}=\dfrac{1}{4}?\)`=>`\(\dfrac{2}{3}x-\dfrac{x}{2}-\dfrac{1}{2}=\dfrac{1}{4}\)`=>`\(\dfrac{4x}{6}-\dfrac{3x}{6}-\dfrac{1}{2}=\dfrac{1}{4}\)`=>`\(\dfrac{x}{6}-\dfrac{1}{2}=\dfrac{1}{4}\)`=>`\(\dfrac{x}{6}=\dfrac{1}{4}+\dfrac{1}{2}\)`=>`\(\dfrac{x}{6}=\dfrac{3}{4}\)`=> 4x=3*6``=> 4x=18``=> x=`\(\dfrac{18}{4}=\dfrac{9}{2}=4,5\)Vậy, `x=4,5.`\(\href{https://hoc24.vn/vip/14874167551162}{\text{_KaizulvG_}}\)