Answer:
- Mikhail's age = 27 years.
Explanation:
Given :-
- Gabrielle is 7 years older than Mikhail.
- The sum of their ages is 61 year's.
To Find :-
Solution :-
Let's assume,
- Mikhail's age = x
- Gabrielle's age = 7 + x
Also, The sum of their ages is 61 year's.
Mikhail's age + Gabrielle's age = 61


Subtract 7 from both sides,


Divide both sides by 2,

Henceforth, The age of Mikhail is 27 years.