Simple step function, Laplace transform

[i_am_stupid]

Homework Statement

A system is characterized by the equation y' + 3y = r' .

When the input is r(t) = u(t) - u(t-1), find y(t) by taking the inverse Laplace transform of Y(s).

Homework Equations

The Laplace transform integral
The Laplace transform of a derivative sF(s) - f(0)

The transfer function of the system Q = s/s+3

The impulse response q_imp(t) = δ(t) - 3e^-3t

The Attempt at a Solution

I'm really not sure what to do here. It seems like it should be simple enough but I feel like I am not understanding the question correctly. Any hints?

 

[i_am_stupid]

Nevermind, got it.