Solve the equation `x+7=5`

Options

A. `-2`
B. `12`
C. `1`
D. `2`

Answer

To solve the equation \( x + 7 = 5 \), we will follow these steps:

### Step 1: Isolate the variable \( x \)
To isolate \( x \), we need to move the constant term (which is 7) to the other side of the equation. We can do this by subtracting 7 from both sides of the equation.

\[ x + 7 - 7 = 5 - 7 \]

### Step 2: Simplify both sides
Now, we simplify both sides of the equation:

\[ x = 5 - 7 \]

### Step 3: Calculate the right side
Next, we perform the subtraction on the right side:

\[ x = -2 \]

### Conclusion
The solution to the equation \( x + 7 = 5 \) is:

\[ x = -2 \]

### Step 4: Verify the solution
To verify our solution, we will substitute \( x = -2 \) back into the original equation:

\[ x + 7 = 5 \]

Substituting \( -2 \) for \( x \):

\[ -2 + 7 = 5 \]

Calculating the left side:

\[ 5 = 5 \]

Since both sides of the equation are equal, our solution is verified.

### Final Answer
Thus, the value of \( x \) is:

\[ \boxed{-2} \]

---