You can put this solution on YOUR website! Jake is 52 years old.
How old is joe if Jake is now twice as old as joe was when Jake was as old as joe is now?
:
Jake's age = 52
let j = Joe's age
let d = 52 - j; the difference in their ages
"How old is joe if Jake is now twice as old as joe was when Jake was as old as joe is now?"
52 = 2(j - d)
52 = 2j - 2d
Replace d with (52 - j)
52 = 2j - 2(52-j)
52 = 2j - 104 + 2j
52 = 2j + 2j - 104
52 + 104 = 4j
156 = 4j
j = 156/4
j = 39 yrs is Joe's present age
