Which is a simplified form of the expression 4(2z – 1) – 5z?

a. 3z – 1

b. 3z – 4

c. 8z – 1

d. -8z + 4

B: 3z-4

Step-by-step explanation:

First you start with PEMDAS. Parenthesis first.

Distribute 4 to (2z-1)

You get 8z-4

Next combine like terms such as 8z and -5z.

You get 3z because 8-5 is 3.

then you add on the negative four and get 3z-4.

tube or goog would be a great resource to with that question