Question

When asked how old she was, Beth replied “In two years I will be twice as old as I was five years ago”. How old is she? 

Answer 1

Let x = age now 

x + 2 = 2(x - 5) {in 2 years, he will be two times what he was 5 years ago}
x + 2 = 2x - 10 {used distributive property}
2 = x - 10 {subtracted x from each side}
x = 12 {added 10 to each side} 

She is 12