Question

if x=2, y=0 and z= -1 calculate the value of the algebraic expression z-2y​

Answer 1

Answer:

z-2y

= -1-(2*0)

= -1-0

= -1

Answer 2

$\sf \: Answer$

Algebraic expression : z - 2y (given)

We have, x = 2, y = 0 & z = -1

z - 2y = (-1) - 2(0) = -1 - 0 = -1

In this expression, we are not provided by any variable x, thus we haven't used its value.