Question 652266
John = 4*Jane + 2
Jane = Jane (no additional information)

The sum is 37...

Jane + John = 37

Jane + (4*Jane + 2) = 37

abbreviate Jane to J

J + 4J + 2 = 37

5J = 35    (combine like terms, subtract 2 from both sides)

J = 7; Jane is 7 years old, so John is 4(7) + 2; John is 30 years old