A function $f$ has the property that $f(3x-1)=x^2+x+1$ for all real numbers $x$.  What is $f(5)$?
Question:
A function $f$ has the property that $f(3x-1)=x^2+x+1$ for all real numbers $x$.  What is $f(5)$?
Answer:
Let's think step by step.

user
7
A function $f$ has the property that $f(3x-1)=x^2+x+1$ for all real numbers $x$.  What is $f(5)$?
train