Question 377856
Ben's age 5 years ago:x-7
Mary's age 5 years ago:x


5 years ago, x+(x-7)=25
x+x-7=25
2x=18
x=9


5 years ago,
Mary was 9 years old
Ben was 2 years old


Now,
Mary is 14 years old
Ben is 7 years old