18+24+16+22 42+38 =80
9 + 8 + 16 + 17 + 18 = 68
12 + 23 + 45 + 67 + 16 + 18 + 45 = 226
-a + 2 = 18 - 2 = - 2 --------------- - a = 16 a = - 16
It is: 34 -5y simplified
16 + 16 + 16 + 17 + 18 + 18 + 18 + 19 + 19 + 20 + 20 + 20 + 21 = 238
-16
32+14+20+18+16+31+21+16=168
-18 + 16 = -2
2
18+24+16+22 42+38 =80
12 + 16 + 18 + 20 + 9 = 75
9 + 8 + 16 + 17 + 18 = 68
12 + 23 + 45 + 67 + 16 + 18 + 45 = 226
18 + 16 = 34
-18
16 + 2 = 18