I can't get my mind around this problem, I always have issues canceling out "e" values and doing laplace transform of step units
$$e^{2t+3}U\left(t-2\right)$$
Also, is there an online calculator for this type of problems? I found this site:
https://www.symbolab.com/solver/laplace-calculator/
But it gives me an error anytime unit step is used