Write the expression. Then, complete the statements.

twice the difference of a number and seven

A 2-column table with 4 rows. Column 1 is labeled Key Words with entries twice, the difference of, a number, seven. Column 2 is labeled Replace with entries 2 times, (minus), n, 7.

The word “twice” means
.
The words “the difference of” indicate

.
The expression is written as
.

Let's break down the problem step by step according to the table provided.

### The words and their replacements:
| Key Words               | Replace with  |
|-------------------------|---------------|
| twice                   | 2 times       |
| the difference of        | (minus)       |
| a number                | n             |
| seven                   | 7             |

### Completing the statements:
1. The word **"twice"** means **2 times**.
2. The words **"the difference of"** indicate **subtraction (minus)**.
3. The expression is written as **2(n - 7)**.

Would you like to go over more examples or have any other questions? 

Here are 5 related questions for practice:
1. How would you write "twice the sum of a number and five"?
2. What does "three times the difference of a number and four" look like as an expression?
3. Can you write an expression for "half the difference of a number and eight"?
4. How would you express "the difference of twice a number and three"?
5. What is the result of plugging in \( n = 10 \) into the expression \( 2(n - 7) \)?

**Tip:** When dealing with phrases like "the difference of," focus on identifying the operation first, and then apply the other operations (like multiplication or addition).

Write the expression. Then, complete the statements. Twice the difference of a number and seven.

Learn how to write the expression for 'twice the difference of a number and seven.' This lesson covers key algebra concepts, focusing on multiplication and subtraction, with the final expression written as 2(n - 7). Suitable for students in Grades 6-8.

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