SubArea: Absolute valueLevel: BProject ID: 1003187003Accepted: 1Clonable: 1Easy: 0Simplifying the expression \( |3x-9|-|9-3x|+|-3x|-|-9| \) for \( x\in[3;9] \) you get:\( 3x-9 \)\( -3x+9 \)\( 9x-27 \)\( 3x+9 \)