Andie's present age is twice as Steven's age. Ten years ago, Andie was three times as old as Steven. Find the age of each now

Question

Please help me to review for my quarterly exam next week 

Answer 1

Let x = Steven's present age

Let 2x = Andie's present age

x - 10 = Steven's age 10 years ago

2x - 10 = Andie's age 10 years ago

2x - 10 = 3(x - 10)

2x - 10 = 3x - 30

20 years = x

2x = 40 years