Let smallest integer be S
Then 2nd and 3rd = S + 2, and S + 4, respectively
We then get:
2(S + 4) = 3S - 24 ------ Multiplying by LCD, 6
2S + 8 = 3S - 24
2S - 3S = - 24 - 8
- S = - 32
S. or smallest (first) integer =
It is that SIMPLE....nothing complex!