Answer:
Elga's age be 49 years
Explanation:
Let Elga's age be x years
Then, Alvin's age will be (x - 6) years
The sum of their ages is 92
Therefore,
x + (x - 6) = 92
x + x - 6 = 92
2x - 6 = 92
2x = 92 + 6
2x = 98
x = 98 /2
x = 49 years
Hence,
Elga's age be 49 years