Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
For what value of ##x## is the value of ##f(x) = 4x — 2## equal to 18?
x = 5
In this question you have to solve the equation 4x - 2 = 18
hence 4x = 18 + 2 =20
4x = 20 ##rArr x = 5##