A first-degree equation, also known as a linear equation, is an equation where the highest power of the variable is 1.
According to the YouTube video titled "First Degree Equations Introduction," examples of first-degree equations include:
- 3 - x = 11
- 2x + 4 = 12
In both examples, the variable 'x' is raised to the power of 1 (which is usually not explicitly written), making them first-degree equations. In general, a first-degree equation can be written in the form ax + b = 0, where a and b are constants, and x is the variable.