An algebra riddle has been printed on many images:

*Q: Why didn’t the Romans find algebra very difficult?
A: Because X was always 10.*

“The Romans didn’t find algebra very challenging, because X was always 10” was posted on the newsgroup alt.society.zeitgeist on June 20, 2000.

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Math gets complicated

*Twodobes*

6/20/00

The Romans didn’t find algebra very challenging, because X was always 10.

Google Groups: alt.support.single-parents

Reese still can’t admit his mistakes…

*The Stare*

2/28/01

(...)

The Romans didn’t find algebra very challenging, because X was always 10.

Google Groups: alt.humor.puns

Puns of the Weak 03-01-04

*Stan Kegel*

3/1/04

(...)

The Romans didn’t find algebra very challenging, because X was always 10.

(Aaron Dragushan)

Invest Entrepreneur

@investrepreneur

The Romans didn’t find algebra very challenging, because X was always 10.

12:50 AM - 5 Mar 2009

Michael Klobe

@klobetime

Algebra was easy for the Romans because “X” was always 10.

3:06 PM - 11 Mar 2009

Google Books

*Change and Invariance:*

A Textbook on Algebraic Insight into Numbers and Shapes

A Textbook on Algebraic Insight into Numbers and Shapes

By Ilya Sinitsky

Boston, MA: Sense Publishers

2016

Pg. 226:

A joke: The Romans didn’t find algebra very challenging, because X was always 10.

Reddit—Jokes

Why didn’t the Romans find algebra very challenging?

submitted May 17, 2016 by Dodgerballs

Because X was always 10

Reddit—Jokes

Why didn’t the Romans find algebra very difficult?

submitted April 10, 2018 by Mikluvinb

Because X was always 10