If you mean: x+8-x+9 when x = 5
Then it is: 5+8-5+9 = 17
9 + 6 + 9 + 6 + 9 + 8 + 5 + 2 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 99
89
If there is an equals sign after the first 8, the answer is yes.
8 + 1 = 9 5 + 4 = 9 9 + 9 = 18 ( 8 + 1 + 5 + 4 = 18) The answer is 18.
9 + 8 + 7 + 6 + 5 + 4 = 39
9 + 6 + 9 + 6 + 9 + 8 + 5 + 2 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 99
89
It is: -5+1+8+5 = 9
If there is an equals sign after the first 8, the answer is yes.
8 + 1 = 9 5 + 4 = 9 9 + 9 = 18 ( 8 + 1 + 5 + 4 = 18) The answer is 18.
It is: -9+8+(-5)+3+1 = -2
4 + 5 + 6 + 7 + 8 + 9 = 39
9 + 8 + 7 + 6 + 5 + 4 = 39
58
5*(-8)+7*(9) = 23
-5
9 + 8 + 7 + 6 + 5 + 4 + 3 = 42