Question

Given the function f(x) = 5x – 3(3x + 7), determine the value of x when f(x) = –18.

Answer 1

Answer:

x= -3/4

Step-by-step explanation:

f(x)=-18

5x-3(3x+7)=-18

5x-9x-21=-18

-4x=3

x=$\frac{-3}{4}$