Solve the Equation: Finding the Missing Number in ?-0=27

To solve this problem, let's apply the identity property of subtraction:

• We are given the equation $x - 0 = 27$.
• According to the identity property of subtraction, subtracting zero from any number does not change its value. Hence, $x - 0 = x$.

Therefore, the equation simplifies to $x = 27$.

The solution to the problem is $x = 27$, confirming that substitution gives the desired outcome.