it using the word x and y
it is a varible
A expression that only contains numbers is a Numerical
an equation
An expression.
numerical expression
it is a varible
A expression that only contains numbers is a Numerical
an equation
It is an algebraic term.
An expression.
numerical expression
An expression.
It is a numerical expression.
A term, expression, equation or identity.
A numerical expression in math terms has numbers and operations like for an example 1. 4+9 2. (8-2)+5
The answer will depend on what you mean by symbols. I suggest that it is neither an equation, expression nor formula - just a collection of symbols. If you have some numbers, operators and variables then it may be a formula, but even then, only if the collection is in a proper order. For example, 3*/4+(4/0)-/7.59 is a nonsense collection of symbols and numbers.
Numerical equations have only numbers and symbols, while algebraic equations have variables also.