What is a variable in math equations?


It is often confusing to see letters in a math problem. Most math problems deal strictly with numbers and operations on those numbers like addition, subtraction, multiplication, and division. 

A variable is a letter that is used to represent any number that can be "plugged in" to the math equation. For example, the equation 3x+2=10 shows an addition equation that has a letter "x". This letter means that there is a specific unknown number that will solve this math equation.

Another example is something like x+8. If you substitute any number into this equation for "x", you will get a different value each time.

  • Last Updated Jan 19, 2024
  • Views 4
  • Answered By Thomas-Jay Rusk

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