Question 259619
vincent is 10 yrs older than John Paul. 
---
V = P + 10
----

Five yrs ago, his age was twice that of John Paul. Find their present ages.
(V-5) = 2(P-5)
-----------
Substitute for V and solve for P
(p+10-5) = 2(P-5)
P+5 = 2P - 10
P = 15 (John Paul's age now)
------------------
Since V = P + 10, V = 15+10 = 25 (Vincent's age now)
========================================================
Cheers,
Stan H.