Đáp án: $x=\dfrac{37}{2}$
Giải thích các bước giải:
$3-\left ( 5\dfrac{3}{8}+x-7\dfrac{5}{24} \right ):16\dfrac{2}{3}=2\\\Leftrightarrow 3-\left ( \dfrac{43}{8}+x-\frac{173}{24} \right ):\dfrac{50}{3}=2\\\Leftrightarrow 3-\left ( -\dfrac{11}{6}+x \right ).\dfrac{3}{50}=2\\\Leftrightarrow 3-\left ( -\dfrac{11}{100}+\dfrac{3}{50}x \right )=2\\\Leftrightarrow 3+\dfrac{11}{100}-\dfrac{3}{50}x=2\\\Leftrightarrow \dfrac{311}{100}-\dfrac{3}{50}x=2\\\Leftrightarrow 311-6x=200\\\Leftrightarrow -6x=200-311\\\Leftrightarrow -6x=-111\\\Leftrightarrow x=\dfrac{37}{2}$
