a/ \(6x-3-3-x=x-2\)
\(\Leftrightarrow4x=4\Rightarrow x=1\)
b/ \(4x+3-2x+2=0\)
\(\Rightarrow2x=-5\Rightarrow x=-\frac{5}{2}\)
c/ ĐKXĐ: ...
\(1-\frac{1}{x+1}-\frac{2}{x-2}=1\)
\(\Leftrightarrow\frac{1}{x+1}=\frac{-2}{x-2}\)
\(\Leftrightarrow x-2=-2x-2\)
\(\Rightarrow x=0\)