Question

Maclay is three times as old as Pierce, Seven years ago, Maclay was four times as old as Pierce. How many years from now will Maclay be twice as old as Pierce?

Answer 1

Let's break it down! If we let Pierce's age be "x" years, then Maclay's age would be "3x" years. Seven years ago, Pierce's age would have been "x - 7" and Maclay's age would have been "3x - 7". We know that back then, Maclay was four times as old as Pierce, so we can set up an equation:

3x - 7 = 4(x - 7)

Solving this equation will give us Pierce's age. Then we can figure out how many years from now Maclay will be twice as old as Pierce. Let's do the math!