Answers

2014-12-17T08:30:46+05:30
5x- [ 4y- {7x - (3z - 2y) + 4z - 3(x + 3y + 2z)}]
=
5x- [ 4y- {7x - 3z + 2y + 4z - 3x - 9y - 6z}]
= 5x- [ 4y- {(7-3)x - (3-4+6)z +( 2-9)y)}]
= 5x-[4y-{4x-5z-7y}]
= 5x - [4y-4x+5z+7y]
= 5x - [ (4 +7)y+4x+5z]
= 5x -[11y+4x+5z]
= 5x-11y-4x-5z
= x-11y-5z
0