abigailmcarlson abigailmcarlson

22-12-2021
Mathematics

contestada

Devaughn is 15 years younger than sydney. the sun of their ages is 63. what is sydney’s age?

Respuesta :

jen4755 jen4755

22-12-2021

Answer:

39

Step-by-step explanation:

d = s - 15

d + s = 63

Replace d with s - 15

s - 15 + s = 63

2s -15 = 63

2s = 78

s = 39

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