Find the value of the expression where x = -1, y = 3, and z= -4.
4x-z
——-
2y

Answer:
0
Step-by-step explanation:
* I'll use a "/" to show the line between numerator and denominator
substitute in the values of x, y and z.
[4(-1) - (-4)] / 2(3)
= [-4 + 4] / 6
= 0/6
= 0