Writing Algebraic Expressions

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Translate this phrase into an algebraic expression: 2 times the sum of a number and 15. Use the variable B to represent the unknown number.

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2(B + 15)

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Translate this phrase into an algebraic expression: the difference of 33 and a number. Use the variable c to represent the unknown number.

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33 - c

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Translate this phrase into an algebraic expression: 2 times the difference of a number and 11. Use the variable t to represent the unknown number.

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2(t - 11)

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Translate this phrase into an algebraic expression: 8 less than the product of 4 and a number. Use the variable m to represent the unknown number.

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4m - 8

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Translate this phrase into an algebraic expression: 5 less than a number. Use the variable v to represent the unknown number.

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v - 5

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Define an algebraic expression.

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An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

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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 value.

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What does it mean to 'translate' a phrase into an algebraic expression?

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To translate means to convert a verbal phrase into a mathematical expression using variables and operations.

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What is the difference between 'sum' and 'difference' in algebraic expressions?

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'Sum' refers to addition, while 'difference' refers to subtraction.

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How do you represent 'twice a number' in algebra?

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You represent 'twice a number' by multiplying the variable by 2, e.g., 2x.