Respuesta :

Answer:

20

Step-by-step explanation:

Given:

  • x = 5

Substitute the value of x into the expression:

⇒ 3x + 4x - 15

⇒ 3(5) + 4(5) - 15

Simplify the expression:

⇒ 15 + 20 - 15

⇒ 15 + 5

20 (Option A)

Answer:

A. 20

given function:

  • 3(x) + 4(x) - 15

put x = 5

  • 3(5) + 4(5) - 15

simplify

  • 15 + 20 - 15

answer

  • 20