Writing Algebraic Expressions

Front

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.

Back

2(B + 15)

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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

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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.

Back

v - 5

Front

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.

Back

2(t - 11)

Front

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

Back

33 - c

Front

Define an algebraic expression.

Back

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

Front

What is a variable in algebra?

Back

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?

Back

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

Front

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

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

Front

How do you represent '3 times a number' in algebra?

Back

You represent it as 3n, where n is the variable for the unknown number.