Translating Expressions and Equations

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1. The sum of twice a number and three

2. Twice the sum of a number and three

3. The difference of 37 and 4 times a number

4.The total of five times a number and ten is three

5. Twenty-one s the quotient of three times a number and seven

6. There were roses in the vase. Joan cut some more roses from her flower garden. There are now 14 roses in the vase. How many roses did she cut?

7. Keith bought a soft drink for 3 dollars and 7 candy bars. He spent a total of 31 dollars. How much did each candy bar cost?

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1.
Solution:

Let the number be x

The expression will be

2x+3

Answer: 2x+3

2.
Solution:

Let the number be x

The expression will be

2(x+3)

Answer: 2(x+3)

3.
Solution:

Let the number be x

The expression will be

37-4x

Answer: 37-4x

4.
Solution:

Let the number be x

The equation will be

5x+10 = 3

Answer: 5x+10 = 3

5.
Solution:

Let the number be x

The ...

Solution Summary

This solution explains how to translate words/sentences to expressions and equations.

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What is the difference between an equation and an expression?

What is the difference between an equation and an expression? Include an example of each. Can you solve for a variable in an expression? Explain. Can you solve for a variable in an equation? Explain. Write a mathematical phrase or sentence for someone to translate.

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