Answer:
Explanation:
Elga's age = x
Alvin's age = 3*x = 3x
Sum of their ages = 24
x + 3x = 24
4x = 24
Divide both sides by 4
x = 24/4
x = 6
3x = 3*6 = 18
Elga's age = 6 years
Alvin's age = 18 years
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