An element represents the number of unknowns in an equation (if there is only one unknown, it is called an element).

A term that represents the basic unit of operation consisting of numbers, unknowns and operational symbols.

Degree is the power of the unknown quantity in the equation (for example, x 2 is called quadratic)

Thus, the equation of one yuan, the equation of five cents, and even more expensive equations of different prices were born.

Hehe << Finally, a joke.