Let us consider the Example 3 of Section 3.2. Will the rails cross each other?

Explanation

To determine whether the two rails represented by the equations \( x + 2y - 4 = 0 \) and \( 2x + 4y - 12 = 0 \) cross each other, we will follow these steps:

### Step 1: Write down the equations
We have the following equations:
1. \( x + 2y - 4 = 0 \) (Equation 1)
2. \( 2x + 4y - 12 = 0 \) (Equation 2)

### Step 2: Rearrange the equations to find y in terms of x
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