Question 1166260
----------------------------
Nellie is 8 years older than Cristal. Geoffrey is 3 times as old as Cristal. Paris is 5 years younger than Cristal. The combined age of the four is 63
---------------------------


See how everyone's age is related to Cristal?
Let c be Cristal's age.

<pre>
Nellie            c+8
Cristal           c
Geoffrey         3c
Paris             c-5
SUM                63
</pre>
You should obviously know what to do with that.