Write the algebraic expressions for the following.
A number x is reduced by 3.

Answer

To write the algebraic expression for the statement "A number x is reduced by 3," follow these steps:

1. **Identify the variable**: The problem states "a number x." Here, x represents an unknown number.

2. **Understand the operation**: The phrase "is reduced by" indicates that we need to perform a subtraction operation. To reduce means to take away or subtract.

3. **Set up the expression**: To express the reduction, we will subtract 3 from the number x. This can be written as:
\[ x - 3 \]

4. **Final expression**: The algebraic expression that represents "A number x is reduced by 3" is:
\[ x - 3 \]