Solve the Equation: Finding the Missing Value in x - 2.2 = 2.3

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

• Step 1: Identify the given equation.
• Step 2: Rearrange the equation to solve for the unknown.
• Step 3: Perform the arithmetic calculation.

Now, let's work through each step:
Step 1: The given equation is $? - 2.2 = 2.3$.
Step 2: We want to isolate the unknown (?), so we add $2.2$ to both sides of the equation. This gives us:

$? = 2.3 + 2.2$

Step 3: Perform the calculation:

$2.3 + 2.2 = 4.5$

Therefore, the solution to the problem is $4.5$.