18 + н ╤ 11 - н

Solution:

We are comparing two expressions: '18 + н' and '11 - н'.

• The first expression involves addition, and the second involves subtraction. Without knowing the value of 'н', a direct comparison is difficult without further context or specific values. However, typically, when adding a variable to a larger number (18) and subtracting a variable from a smaller number (11), the first expression is likely to be greater, especially if 'н' is a positive number.
• Let's test with 'н = 1': 18 + 1 = 19; 11 - 1 = 10. Here, 19 > 10.
• Let's test with 'н = 5': 18 + 5 = 23; 11 - 5 = 6. Here, 23 > 6.
• If 'н' is negative, let 'н = -1': 18 + (-1) = 17; 11 - (-1) = 11 + 1 = 12. Here, 17 > 12.
• It appears '18 + н' is consistently greater than '11 - н' for most reasonable values of 'н'.

Comparison: 18 + н > 11 - н