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9s + 7 = -11
9s = -18
s = -18/9
s = -2
11 + 7 + 9 = 27
22
-7 + 11 = +4
11
No. It's -11
-11
x-7+7=11+7 x=11+7 x=18
= 3
7 + 4 = 11
7*7+11*10=159
The answer is 21 because if 21 is divided by 3 it equals 7 plus 4 equals 11.