math
posted by joy .
Cynthia is three years older than Dina. The sum of their ages is 31. Find their ages. what are the equation for Dina and for Cynthai

I posted this equation for you over half an hour ago.
http://www.jiskha.com/display.cgi?id=1280365601 
thank you

You're welcome.

Ms. Sue i have some question if Dina is x=14 how about for Cynthia

Please go back and read the problem again. The answer is obvious!

okay thank you i understand

Good!! :)