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[tex]\huge{Answer}[/tex]
d = s-14
d+s = 76
Using substitution method
(s-14)+s = 76
2s-14= 76
2s = 90
s = 45
Sydney's age =45
d = s-14 = 31
Devaughn's age=31
We have that the Sydney's age is mathematically given as
A=y-x
Question Parameters:
let Devaughn is years younger than Sydney=x.
The sum of their ages is =y
Generally the equation for the Sydney's is mathematically given as
A=The sum of their ages-Age apart
Therefore
A=y-x
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