Combine like terms
Simplifying Expressions
Expressions are simplified when all of the like terms have been combined. Terms that are not like terms cannot be combined. In the expression 3x – 5y + 6x, there are three terms. Two of them are like terms. 3x and 6x, which combine to be 9x. The expression can be written as 9x – 5y, which is simplified since the two term are not like terms