Respuesta :
x=small number
x+1= second
x+2= third
3x+3=72
3x=69
x=23 smallest number
Answer: 23
Step-by-step explanation:
3x + 3 = 72
3x + 3 - 3 = 72 - 3
3x = 69
3x ÷ 3 = 69 ÷ 3
x = 23