To evaluate an algebraic expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations. We can also simplify an expressio...To evaluate an algebraic expression, we substitute the given number for the variable in the expression and then simplify the expression using the order of operations. We can also simplify an expression by combining the like terms. A term is a constant or the product of a constant and one or more variables. Terms that are either constants or have the same variables with the same exponents are like terms.
