9 + 8 + 16 + 17 + 18 = 68
17 plus 9 plus 6 plus 16 is a single number whose value is 38. The average of one number is itself.
4x + 16 + 1 = 4x + 17 which cannot be factorised.
3 + 11 + 11 + 11 + 12 + 13 + 15 + 15 + 16 + 17 + 19 = 143
17
4x
-16
17 = 16 = 33
11 + 14 + 16 + 17 = 58
9 + 8 + 16 + 17 + 18 = 68
16 + 16 + 16 + 17 + 18 + 18 + 18 + 19 + 19 + 20 + 20 + 20 + 21 = 238
because it is pie plus pies equeal beach
134
They all add up to 48
16 + 1 = 17
41
107-19 equeal = 88