3-1 Writing Algebraic Equations A

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What is an expression in mathematics?

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An expression is a combination of numbers, variables, and operators (such as + and -) that represents a value but does not contain an equal sign.

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What is an equation?

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An equation is a mathematical statement that asserts the equality of two expressions, containing an equal sign.

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Translate the sentence: 'Three times the sum of d and 4 is 32' into an equation.

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How do you represent a scenario where Scott's Automotive charges $35 for each car plus $7 per hour if Kylie was charged $63?

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What is a variable in mathematics?

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A variable is a symbol, often a letter, that represents one or more numbers.

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What is a constant in mathematics?

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A constant is a fixed value that does not change.

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What is a coefficient?

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A coefficient is a numerical factor in a term of an algebraic expression.

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What is the difference between an expression and an equation?

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An expression does not have an equal sign, while an equation does.

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How do you write an equation for the total cost if a service charges a fixed fee and a variable fee?

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