I have this set $E=\{x\in\mathbb R:|2x+1|>|x+2|\}$.
I want to decompose this inequality in something like this: \begin{align} |x+1|>0\Leftrightarrow \end{align} \begin{array}{col1col2col3col4col5} x & + & 1 & > & 0\\ -x & - & 1 & > & 0 \end{array}
But I don't what steps to take.