Question

add the following in horizontal method. x-2y-z,x+y+z and -x+y+2z ​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

add x-2y-z,x+y+z and -x+y+2z

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

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

= X + 0 y + 2z

=X + 2z