No. A number without a sign before it is always taken to be positive.
-17
17
-34
-17
-6 multiplied by -17 is 102.
The sum of -26 and -17 is -43.
-17
It is negative 17.
-21
17 - -23 can be turned into 17 + 23 because of the double negative, so 17 minus negativ 23 is 40. :]
-1x17=-17
negative 20