There are an infinite amount of answers to that question. Here are just a few:
11 - 5 = 6
210 - 204 = 6
1094 - 1088 = 6
19 minus 6 equals 13.
What minus 6 equals 12 is 18
-6 - (-8) = 2
18
6 divided by 11 minus 1 divided by 2 equals?
Minus 8 plus 6 equals -2.
The answer to -12x minus 17 equals negative 89 is x equals 6.
-2
6
7 - 6 = 1
11 - 5 = 6
6