 
<translate> Tụlee ajụjụ ahụ. Bill na-agbalị ịgụta ụmụntakịrị nọ n'ebe ọ na-elekọta ụmụaka, ma ha nọgidere na-agbagharị. Ọ gụrụ ụmụntakịrị asatọ ugboro abụọ ma ọ hụghị ụmụntakịrị atọ na-ezo ezo. Ọ bụrụ na Bill chere na ya gụrụ ụmụaka iri abụọ na isii, ole ka ha dị n'ezie? Gịnị bụ usoro e ji atụgharị uche site n'otu nzọụkwụ gaa n'ọzọ iji ruo azịza ya: 21? <eng> Consider the question. Bill is trying to count the toddlers at his daycare, but they keep running around. He double-counts 8 toddlers and misses 3 who are hiding. If Bill thinks he counted 26 toddlers, how many are there really?
 What is the step-by-step reasoning process to arrive at the answer: 21? 