math statements that contain variables are expressions or equations that have a letter or symbol that represents a number or value. for example, if (2+N=7), N is the variable and N=5 hope this helps
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An algebraic expression is a type of expression that contains a variable or variables.
Finding a set of value for the set of variables so that, when these values are substituted for the corresponding variables, all the equations in the system are true statements.
literal equation
An expression.
Statements A and B contain variables, as they do not specify a numerical value, and could be different in different circumstances. However, 80 mph and 27 points are constants that always have the same value.