<PRE><B>Question 490068</B>
Ming sold a total of 36 red and blue ribbons. She sold 6 more red ribbons than blue ribbons. How many of each color did she sell? 
---
Quantity Equation: r + b = 36
Quantity Equation: r = b + 6
---------------------------------
If you want a one-variable equation:
(b+6)+b = 36
=======================================
Cheers,
Stan H.</PRE>