Question

Someone help pls! Step by step pls

Answer 1

That’s how you plug it in and get the answer because when you plug in z and y value correctly you just have to follow the rule and simplify
So final answer would be +2

Answer 2

Answer:

Step-by-step explanation:

z- (y-1 / 3)

change y to 4 and z to 3

3- (4-1 / 3)

3- (3 / 3)  If you have the same number as the numerator and the denominator        you will get 1

3 - 1 = 2