Question

Alvin is 12 years older than Elga. The sum of their ages is 112. What is Elga's age?

Answer 1

Lets Elga's age = x
12 + x =  Alvin
x + 12 + x = 112
2x + 12 = 112
2x = 100
x = 50

Elga's age = 50
Alvin = 50 + 12 = 62

answer
Elga's age = 50

Answer 2

so first you have to put up an equation x+12=112 elga's age is 100 if im not correct im very sorry