11 - 9 = 2
9
92 is the same as 9 * 9 which equals 81. 112 is the same as 11 * 11 which equals 121.
No, it equals 9, but XI equals 11.
20
x ≠11 9 + x = 21 9 + x - 9 = 21 - 9 x = 12
100 ÷ 9 = 11 1/9 → 11/9 × 9 = 100
11 x 9
11 + 7 + 9 = 27
3x-11 for x=9
m=9/11 (nine-elevenths), or 0.8181818181...
7
16 10/11 - 9 = 7 10/11