Question

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

Answer 1

-4

Explanation:

`f(x)=-3x+6\\\\f(x)=18\\\\\Rightarrow 18=-3x+6\\\\18-6=-3x\\\\12=-3x\\\\x=(12)/(-3)\\\\x=-4`

Answer 2

-54 + 6

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