Question

simplify: 4x - [4y - {x - (2z– 2y) + 3z - (x - 2y - z)}]​

Answer 1

$\huge\color{red}\boxed{\colorbox{black}{\tt{☣ANSWER☣}}}$

4x - [ 4y - { x - ( 2z - 2y ) + 3z - ( x - 2y - z ) } ]

4x - [ 4y - { x - 2z + 2y + 3z - x + 2y + z } ]

4x - [ 4y - { 2z + 4y } ]

4x - [ 4y - 2z - 4y ]

4x - [ - 2z ]

4x + 2z