Question

If f(x) = 5x - 7, what is {3)?
O A. 22
O B. 2
O c. 1
• D. 8

Answer 1

Answer:  8

Work Shown:

f(x) = 5x - 7

f(3) = 5(3) - 7 .... every x replaced with 3

f(3) = 15 - 7

f(3) = 8

Answer 2

Option - D is ✔ (8)

$\:$

Given :

• f(x) = 5x - 7
• x = 3

To Find :

• What is the value of x ?

Calculating the value of x :

$\sf : \implies \: 5x - 7$

$\sf : \implies \: 5(3) - 7$

$\sf : \implies \: 15 - 7$

$\bf : \implies \: 8$

Hence,

$\implies \boxed{ \bf \: \therefore \: The \: value \: of \: x \: is \: 8 \: }$