Question 775968
Let n be Rene's current age.  Then, her sister's age is (n - 6).
 
Our equation is then:
n + 10 + (n - 6) + 10 = 50
 
Simplify.
2n + 14 = 50
2n = 36
n = 18
 
Therefore, Rene is currently 18 years old and her younger sister is 12.