A.) 16

B.) 9

C.) 8

D.) 7

E.) 5

**23 = Lyle's current age**

15 = Melanie's current age{Melanie is currently 8 years younger than Lyle}

15 = Melanie's current age

23 - x = 2(15 - x) {Lyle was twice as old as Melanie -x years ago}

23 - x = 30 - 2x {used distributive property}

-7 - x = -2x {subtracted 23 from each side}

-x = 7 {added x to each side}

Lyle was twice as old as Melanie 7 years ago

**D.) 7**

*- Algebra House*