In Roman numerals, x equals ten.
X is in math.
X is an arbitrary number, which can directly enter the original equation.
Like y, he can represent all the numbers.
One-dimensional linear equation. There is only one unknown called a linear equation.
Such as x+3=4 and j+6=9.
There are only two unknowns called binary linear equations.
For example, z+B+ 16=45, and x+y+2=6.
The ternary linear equation is called ternary linear equation.
Such as Z+Y+X+45=234.
Yuan refers to how many unknowns there are, and the number represents a series of formulas. If there is a quadratic equation with three variables, it represents two series.