Question

plzzz help ....simplify<br />$(2x + y) + (2x + z) + (2z + x) + ( - 3x - 3y - 3z)$<br />

Answer 1

Question :

( 2x + y ) + ( 2x + z ) + ( 2z + x ) + ( -3x - 3y - 3z )

Solution :

( 2x + y ) + ( 2x + z ) + ( 2z + x ) + ( -3x - 3y - 3z )

↪ 2x + y + 2x + z + 2z + x + ( - 3x - 3y - 3z )

↪ ( 2x + 2x + x) + ( y + z ) + ( - 3x - 3y - 3z )

↪ 5x + y + z - 3x - 3y - 3z

↪ 2x - 2y - 2z

↪ 2 ( x - y - z )

Answer

Answer 2

Question :

( 2x + y ) + ( 2x + z ) + ( 2z + x ) + ( -3x - 3y - 3z )

Answer :

= 2x + y + 2x + z + 2z + x + ( - 3x - 3y - 3z )

= 2x + 2x + x + y + z - 3x - 3y - 3z )

= 2x + y + z - 3y - 3z

= y + z - 3y - 3z

= 2x - 2y - 2z

= 2 ( x - y - z )