diff --git a/docs/2a/ece205.md b/docs/2a/ece205.md
index 9440568..2ccebb1 100644
--- a/docs/2a/ece205.md
+++ b/docs/2a/ece205.md
@@ -156,6 +156,13 @@ $$
 \mathcal L\{u_c(t)g(t)\}=e^{-sc}\mathcal L\{g(t+c)\},s>s_0
 $$
 
+Likewise, under the same conditions, shifting it twice restores it back to the original.
+
+$$
+\mathcal L\{u_c(t)f(t-c)\}=e^{-sc}\mathcal L\{f\}
+$$
+
+
 ## Resources
 
 - [Laplace Table](/resources/ece/laplace.pdf)