Question

[hello Đạt]

 

Answer 1

[Toru]

\(\dfrac{1}{2}x-75\%=\dfrac{3}{5}\left(x-2\right)\)

\(\Rightarrow\dfrac{1}{2}x-\dfrac{3}{4}=\dfrac{3}{5}x-\dfrac{6}{5}\)

\(\Rightarrow\dfrac{1}{2}x-\dfrac{3}{5}x=-\dfrac{6}{5}+\dfrac{3}{4}\)

\(\Rightarrow-\dfrac{1}{10}x=-\dfrac{9}{20}\)

\(\Rightarrow x=-\dfrac{9}{20}:\left(-\dfrac{1}{10}\right)\)

\(\Rightarrow x=\dfrac{9}{2}\)