38.
7 + 33 + 16 + 22 = 78
22 + 20 + 16 + 6 + 4 = 68
16 + 6 = 22
18+24+16+22 42+38 =80
-22
16
It is: 8 times 2 plus 3 times 2 = 22
491
22! 8 + 8 is 16 + 6 = 22
it would be 21. I think the answer is -22. Because -16 + -21= -37 + 15= -22
22+16-8*5 = 38-40 = -2.
3x + 16 = 22 3x = 6 x = 6/3 x = 2