Translating/Writing 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 (like +, -, *, /) but does not have an equal sign.

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What is the difference between an equation and an expression?

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An equation contains an equal sign (=) and shows that two expressions are equal, while an expression does not have an equal sign.

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Translate the phrase: '4 times a number increased by 7'.

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Translate the phrase: '15 miles less than Debbie'.

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Translate the phrase: 'the quotient of a number and 9'.

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Translate the phrase: 'Twenty decreased by a number'.

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What does the term 'variable' mean in algebra?

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

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What is a coefficient in an algebraic expression?

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What does it mean to 'evaluate' an expression?

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To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

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What is a constant in an algebraic expression?

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