The answer to this is letter E. In order to solve this, you can check out this equation: x - 3 = uThen x + 3 = u + 6 (x + 3 + 3)f(u) = g(u+3) in general .This means f(x) = g(x+3+3) = g(x+6) There are a lot of people who are confused why they should do Algebra.
Those who are not sure why they need Algebra should remember that Algebra is known to be one of the gateways that people will use in order to improve their ability to do advanced math. The more that people become good at doing algebra, the better they will fare in doing other advanced math equations. Do you like doing algebra?