\(\left\{{}\begin{matrix}\dfrac{1}{2x-y}+x+3y=\dfrac{3}{2}\\\dfrac{4}{2x-y}-5\left(x+3y\right)=-2\end{matrix}\right.\)

GIẢI HỘ AHHHHHHHHHH

B = \(\dfrac{\sqrt{x}+3}{\sqrt{x}-3}+\dfrac{\sqrt{x}-3}{\sqrt{x}+3}-\dfrac{36}{x-9}\)

RÚT GỌN B

\(6.\left\{{}\begin{matrix}x+2y=5\\3x-y=1\end{matrix}\right.\)

\(7.\left\{{}\begin{matrix}\left(x+1\right)\left(y-1\right)=xy-1\\\left(x-3\right)\left(y-3\right)=xy-3\end{matrix}\right.\)

\(8.\left\{{}\begin{matrix}\dfrac{1}{x+1}-\dfrac{3}{y-1}=-1\\\dfrac{2}{x+1}+\dfrac{4}{y-1}=3\end{matrix}\right.\)

\(\left\{{}\begin{matrix}\dfrac{1}{x}+\dfrac{1}{y}=2\\\dfrac{3}{x}-\dfrac{1}{x}=2\end{matrix}\right.\)

\(\left\{{}\begin{matrix}\dfrac{1}{x-2}+\dfrac{5}{2y-1}=3\\\dfrac{3}{x-2}-\dfrac{1}{2y-1}=1\end{matrix}\right.\)