Question 717974
In 4 years, Nan will be 3 times as old as Dan will be then. The sum of their ages now is 56

hi,

Let x = age of Nan today

y = age of dan today


x+4 = 3(y+4)
x+y = 56

Then

x = 3y+12-4 = 3y+8

3y+8+y = 56

4y = 48

y = 12
x = 44

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Thanks