\(e,\dfrac{1-3x}{6}+x-1=\dfrac{x+2}{2}\\ \Leftrightarrow\dfrac{1-3x}{6}+\dfrac{6\left(x-1\right)}{6}-\dfrac{3\left(x+2\right)}{6}=0\\ \Leftrightarrow1-3x+6x-6-3x-6=0\\ \Leftrightarrow-13=0\left(vô.lí\right)\)
\(f,\dfrac{3\left(2x+1\right)}{4}-5-\dfrac{3x+2}{10}=\dfrac{2\left(3x-1\right)}{5}\\ \Leftrightarrow\dfrac{15\left(2x+1\right)}{20}-\dfrac{100}{20}-\dfrac{2\left(3x+2\right)}{20}-\dfrac{8\left(3x-1\right)}{20}=0\\ \Leftrightarrow30x+15-100-6x-4-24x+8=0\\ \Leftrightarrow-81=0\left(vô.lí\right)\)
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