how to solve this?

Question

 At KBC Co., the nationally advertised brand refrigerator sold for $990, while the store brand sold for $560. If 50 refrigerators were sold for a total of $36,170, how many store brand refrigerators were sold?

Answer 1

Let x = # of KBC 

Let y = # of store brand

 

x+y = 50

990x+560y = 36170

 

Now solve this system by elimination or substitution. If you need more help, please direct message me.