Respuesta :

Subtract the difference in age from the total:

87 - 15 = 72

Divide by 2:

72 / 2 = 36

Sydney is 36 years old

Devaughn is 15 years older: 36 +15 = 51 years old


51 + 36 = 87

Answer:

sydney is 36

Step-by-step explanation:

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