Question

From the sum of x + y -2z and 2x - y + z subtract x + y +z .

Answer 1

Answer:

Step-by-step explanation:

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

= 3x-y+z -y-z

= 3x-2y-0

= 3x-2y ------- equation 1

let 3x-y-z be equation 2

now adding equation 1 and 2

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

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

=0x -y +z

so the coefficient of x is 0

Answer 2

Answer:

2x - 2z - y

Step-by-step explanation:

hope this helps u