solve the following equations:
`x-4=9`

Explanation

To solve the equation \( x - 4 = 9 \), we will follow these steps:

### Step 1: Identify the equation
We start with the equation:
\[ x - 4 = 9 \]

### Step 2: Add 4 to both sides
To isolate \( x \), we need to eliminate the -4 on the left side. We do this by adding 4 to both sides of the equation:
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