Question

if f (x) = -3x+6 and f(x) = 18, what is the value of x

Answer 1

Answer:

-54 + 6

forgive me if i'm wrong, i am trying my best!!

Answer 2

Answer:

-4

Step-by-step explanation:

$f(x)=-3x+6\\\\f(x)=18\\\\\Rightarrow 18=-3x+6\\\\18-6=-3x\\\\12=-3x\\\\x=\frac{12}{-3}\\\\x=-4$