World problems

Question

Gabrielle is 5 years younger than mikhai. The sum of their ages is 57. what is mikhails age ?

Answer 1

M = Mikhai's age

 

G = Gabrielle's age = M - 5

 

M + G = 57

 

57 = M + (M - 5) = 2M - 5

 

M = (57 + 5) / 2 = 31

 

G = M - 5 = 31 - 5 = 26

 

Mikhail is 31

Gabrielle is 26