To solve the equation \( x + 5 = x \), we can start by isolating \( x \).
- Subtract \( x \) from both sides: \[ x + 5 - x = x - x \] This simplifies to: \[ 5 = 0 \]
The equation \( 5 = 0 \) is a contradiction. Since this statement is never true, the original equation \( x + 5 = x \) has no solutions.
Thus, the answer is Zero.