SubArea: Absolute value equations and inequalitiesLevel: CProject ID: 1003177805Accepted: 1Clonable: 0Easy: 0Let \( x\in\mathbb{Z} \). Find the sum of all the solutions of the given inequality. \[ \Bigl| \bigl| |x+1|+1 \bigr|+1\Bigr| \leq 3 \]\( -3 \)\( -2 \)\( -4 \)\( 0 \)