Question

What is the value of 4x - 7 when x=4?

1
9
16
23

Answer 1

the answer is 9

all work is shown

Answer 2

9

Explanation:

`4x - 7;x = 4`

"P" in PEMDAS is parentheses which is done first.

`4(4) - 7 \\ 16 - 7`

"S" is substraction done next.

`16 - 7 = 9`