Question

Alvin is 15 years older than Elga. The sum of their ages is 81. What is Elga's age

Answer 1

Answer:

33

Step-by-step explanation:

let Elga age be x

And So Alvin age is x+15

x+x+15=81

2x+15=81

2x=81-15

2x=66

x=66/2

x=33

Answer 2

Answer:

Let the age of Elga be x, the age of Alvin will be (x+15).

Given that, sum of their ages is 81.

x+(x+15)=81

2x+15=81

2x=66

x= 66/2

•°•x=33

•°• The age of Elga is 33 yrs.