This is actually incorrect. In proper algebra you cannot cancel out the two "love"s because they are being added/subtracted, not multiplied/divided. This equation is invalid.
Some math humor for you - Imgur
23 Pictures That Are Too Real For People Who Are Bad At Math-----Every single time you go out:
Math errors in real life pictures!
FoxTrot Systems of Equations.jpg
Explain why Calvin is wrong...I really like this! Jumpstart for lots of fun ways to teach math!
quadratic formula - Google Search
A commenter stated: "So inefficient! Here's the real way to do it: 2 x 0 = 0 [AND THEREFORE] 2 = 0/0"