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: 5 less than a number. Use the variable v to represent the unknown number.

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v - 5

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Translate this phrase into an algebraic expression: The quotient of twenty and a number. Use the variable n to represent the unknown number.

Back

20/n

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Translate this phrase into an algebraic expression: 80 more than a number. Use the variable B to represent the unknown number.

Back

B + 80

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Translate this phrase into an algebraic expression: The difference of 3 times a number and 7. Use the variable n to represent the unknown number.

Back

3n - 7

Front

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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It means to convert a verbal statement into a mathematical expression using variables and numbers.

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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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What does 'quotient' mean in algebra?

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The quotient is the result of dividing one number by another.