# A nine year old wrote this problem. Can you solve it? Viral Math Problem | Summary and Q&A

10.4K views
August 14, 2020
by
tecmath
A nine year old wrote this problem. Can you solve it? Viral Math Problem

## TL;DR

A 9-year-old posed a math problem that challenges viewers to solve it using guess and check or with an elegant algebraic proof.

## Key Insights

• 😫 The problem involves solving a set of equations using guess and check or an elegant algebraic proof.
• ✅ Logical assumptions and deductions can help narrow down the possible values for the variables in guess and check.
• ❓ In the algebraic proof, equations are combined to eliminate certain variables and simplify the problem.

## Transcript

good day and welcome to the tech math Channel I'm Josh today we're looking at a problem posed in a tweet in 2020 by celest this is the tweet and my favorite part is the problem is posed in crayon okay so this is the Tweet a dinner 9-year-old made up a math problem and made his father a me solve it our attempt to do simultaneous equations got really... Read More

### Q: How did the speaker approach solving the math problem using guess and check?

The speaker assumed that the solutions would be positive whole numbers and used logical deductions from two of the equations to narrow down the possible values for the variables.

### Q: What is the primary technique used in solving the math problem with an algebraic proof?

In the algebraic proof, the speaker forms new equations by adding or subtracting the original equations, which eventually lead to a simplified equation that can be factorized to solve for the variable.

### Q: Can the quadratic formula be used to find additional solutions for the variables?

Yes, using the quadratic formula on the simplified equation, it is possible to find alternative values for one of the variables, which can then be substituted into the original equations to obtain different solutions.

### Q: What other acknowledgments are given in the video?

The video gives credit to the 9-year-old who posed the math problem, Celeste for posting it, as well as thanking the subscribers and patrons of the tech math Channel.

## Summary & Key Takeaways

• The video discusses a math problem posed by a 9-year-old, challenging viewers to solve it using guess and check or algebra alone.

• The solution involves identifying key equations, using guess and check with logical assumptions, and then finding an elegant algebraic proof.

• The problem is solved by finding specific values for the variables A, E, F, and C, either through guess and check or by using the quadratic formula.