let the consecutive odd integers be
x, x+ 1, x+ 2, x + 3, x + 4
Average = sum / total number
Average = -45
Total number = 5
-45 = x + x + 1 + x + 2 + x + 3 + x + 4 / 5
Introduce cross multiplication
-45 x 5 = x + x + 1 + x + 2 + x + 3 + x + 4
-225 = x + x + x + x + x + 1 + 3 + 4 + 5
-225 = 5x + 16
