Do you remember input-output problems? That's exactly what they are!
They are laid out like this: f(x)=(any sort of combination can go here)
Let's show you an example: f(x)=4x-6
Let's say x=3.
Substitute it into the problem.
f(3)=4(3)-6
f(3)=12-6
f(3)=6
Could you maybe take a picture or screenshot of it? Or maybe type it out for us?
Let me model what you have given us with another situation
"Help, my computer isn't working."
"Ok, what do need help with?"
"I don't understand it. It has colors and keeps going black after a time. I need help with the internet also."
Do you remember input-output problems? That's exactly what they are!
They are laid out like this: f(x)=(any sort of combination can go here)
Let's show you an example: f(x)=4x-6
Let's say x=3.
Substitute it into the problem.
f(3)=4(3)-6
f(3)=12-6
f(3)=6