Solve the Expression: 4+0.4-0 Step by Step

To solve this problem, we'll follow these steps:

• Step 1: Apply the addition identity property.
• Step 2: Apply the subtraction identity property.
• Step 3: Compare the results of both expressions.

Now, let's work through each step:

Step 1: For $4 + 0$, using the addition identity property, we know $4 + 0 = 4$.

Step 2: For $4 - 0$, using the subtraction identity property, we find $4 - 0 = 4$.

Step 3: Comparing the results, we have $4 = 4$.

Therefore, the solution to the problem is $=$, which corresponds to the answer choice id="3".