Question

W + x - z when w = 5, x = 1, z = 2

Answer 1

W + X - Z
W = 5
X = 1
Z = 2

Plug in our numbers.

5 + 1 - 2
Use PEMDAS (Add first)

5 + 1 = 6

Use PEMDAS (Subtract)

6 - 2 = 4

Your answer is 4.

I hope this helps!