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. For example, 2x + 3 is an algebraic expression.

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What does it mean to subtract a number from another number?

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To subtract a number from another number means to take away the second number from the first. For example, subtracting 5 from 10 means calculating 10 - 5.

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How do you represent 'subtract a number from 10' in algebraic form?

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The algebraic expression for 'subtract a number from 10' is 10 - n.

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What is the algebraic expression for '13 subtracted from t'?

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The algebraic expression for '13 subtracted from t' is t - 13.

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How do you express 'a number added to 19' in algebraic terms?

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The algebraic expression for 'a number added to 19' is 19 + n.

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What does 'add 6 to a number' mean in algebra?

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In algebra, 'add 6 to a number' means to create the expression 6 + n.

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What is the expression for '4 less than a number'?

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The expression for '4 less than a number' is n - 4.

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What is a variable in algebra?

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A variable is a symbol, often a letter, that represents an unknown number in an expression or equation. For example, in the expression 2x + 3, 'x' is a variable.

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What is the difference between an expression and an equation?

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An expression is a combination of numbers, variables, and operations without an equality sign, while an equation states that two expressions are equal, using an equality sign.

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How do you write 'the sum of a number and 10' in algebraic form?

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The algebraic expression for 'the sum of a number and 10' is n + 10.