An equation admits of description in two ways:— It may be regarded purely as an algebraic expression, or as a geometrical locus.
It is a mere symbol, like the algebraic expression which stands for a curve.
In short, the true value of a thing is invariable in its algebraic expression, although it may vary in its monetary expression.
a mathematical phrase which can contain numbers, operators (add, subtract, multiply, divide), and at least one variable (like x, y) to represent operations
An example of an algebraic expression is x + 5 4n ÷ 6.