Evaluate Algebraic Expressions

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What is an algebraic expression?

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An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 3x + 2 is an algebraic expression.

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How do you evaluate an algebraic expression?

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To evaluate an algebraic expression, substitute the values of the variables into the expression and perform the operations according to the order of operations (PEMDAS/BODMAS).

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What does it mean to solve an equation?

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To solve an equation means to find the value(s) of the variable(s) that make the equation true.

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25

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12

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23

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28

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What is the order of operations in mathematics?

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The order of operations is a set of rules that determines the sequence in which operations are performed in an expression: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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What is a variable in algebra?

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A variable is a symbol, usually a letter, that represents an unknown value in an expression or equation.