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Subtraction is a fundamental arithmetic operation, used to determine the difference between two numbers. When you see a phrase like '14 minus 23,' it means you need to subtract 23 from 14.

The subtraction operation is represented by the minus sign (-). For example, in the expression \(14 - 23\), 14 is the minuend (the number you start with), and 23 is the subtrahend (the number you subtract).

Subtraction can also be visualized on a number line: you start at the point representing the minuend and move to the left by the amount of the subtrahend.

In our example, you start at 14 and move 23 units to the left, ending up at -9.

Understanding negative numbers is essential when performing operations like subtraction.

Negative numbers are numbers less than zero, represented with a minus sign (e.g., -9). They can be visualized as points on a number line to the left of zero.

In the exercise, after subtracting 23 from 14, you end up with \(14 - 23 = -9\). This result means that if you owe someone 23 units but only have 14, you are in debt by 9 units, metaphorically speaking. This concept of negative numbers is crucial for simplifying arithmetic expressions and understanding real-world problems that involve deficits or losses.

Always remember: a negative sign indicates a value less than zero.

Simplifying expressions involves performing the operations and reducing the expression to its simplest form.

Let's revisit the example: \(14 - 23\). First, identify the arithmetic operation to perform, which is subtraction in this case.

To simplify, start by understanding that subtraction of a larger number from a smaller one will yield a negative result.

Perform the subtraction: \(14 - 23\). Calculate this step by step if needed: \(14 - 14 = 0\), and then continue: \(0 - 9 = -9\). So, \(14 - 23 = -9\).

The simplified expression in this example is -9. Simplifying expressions consistently leads to a clearer understanding of the problem and its solution. Practice more to become confident!