Question 910403
x Christy's age
In 8 years
Collin ....will be
(x+66) + 8 = 3(x+8)
x + 74 = 3x + 24
50 = 2x
25 = x, Christy's age.  Collin 91 {{{25+66}}}
and checking..in 8 years
99 = 3(33)