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Lesson 2.3 Simplifying Variable Expressions Definitions • Variable Expression: – an expression with at least one variable along with operations and sometimes numbers • Terms: – the parts of an expression that are added together • Coefficient: – the number part of a term. The number that precedes the variable in a term Definitions Cont. • Constant Term: – a term with a number but no variables • Like Terms: – terms that have the same variable parts. Terms that have the same variable raised to the same power • Simplifying Expressions: – combining like terms so it has no grouping symbols and all like terms have been combined