1. The problem is to evaluate the expression \(1 - 24\).\n2. This is a simple subtraction problem where we subtract 24 from 1.\n3. The formula for subtraction is \(a - b = c\), where \(a\) and \(b\) are numbers and \(c\) is the result.\n4. Substitute the values: \(1 - 24\).\n5. Since 24 is greater than 1, the result will be negative.\n6. Calculate the difference: \(24 - 1 = 23\).\n7. Therefore, \(1 - 24 = -23\).\n8. The final answer is \(-23\).