\(\dfrac{1}{2x-3}-\dfrac{3}{x\left(2x-3\right)}=\dfrac{5}{x}\)
ĐKXĐ : \(\left\{{}\begin{matrix}2x-3\ne0\\x\ne0\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x\ne\dfrac{3}{2}\\x\ne0\end{matrix}\right.\)
Ta có : \(\dfrac{1}{2x-3}-\dfrac{3}{x\left(2x-3\right)}=\dfrac{5}{x}\)
\(\Leftrightarrow\dfrac{x}{x\left(2x-3\right)}-\dfrac{3}{x\left(2x-3\right)}=\dfrac{5\left(2x-3\right)}{x\left(2x-3\right)}\)
`=> x -3=5(2x-3)`
`<=> x-3=10x-15`
`<=> x-10x =-15+3`
`<=> -9x = -12`
`<=> x= 12/9`
`<=> x= 4/3`
Vậy phương trình có tập nghiệm \(S=\left\{\dfrac{4}{3}\right\}\)