Question

what should be added to×+2y + z so that the sum be z​

Answer 1

Answer:

i think '-x-2y' should be added

Step-by-step explanation:

Answer 2

Answer:

You must add (-x-2y) to get the sum as z

Step-by-step explanation:

let the missing number be n

x+2y+z+n=z __(1)

(z gets canceled on transposing the numbers to the other side)

x+2y+n=0

n= -x-2y __(2)

Hence you should add -x-2y to get the sum as z.

You can verify it too by using equation (1) and substituting the value of n from equation (2) in (1)

HOPE IT HELPS... PLZ MARK AS THE BRAINLIEST...   : )