Question

PROBLEM 2
Evaluate the expression 9 – z when z = 8.

Answer 1

You know:

z = 8 so substitute/plug it into the expression

9 - z Plug in 8 into "z" since z = 8

9 - 8

1

Answer 2

9-8=1

Explanation:

Substitute 8 for z and gives you 9-8 which equals 1