How do I solve this? I was told that I needed to use a simultaneous equation somewhere, but I don't know how to.
I have to find x and y in this equation, it's:
6980 = (x*69)+(y*71)
please help.
+37146 You need another equation relating x and y to have a simultaneous equation set with a unique answer....otherwise the graph below shows all of the answer to this ONE equation relating x and y :
https://www.desmos.com/calculator/nfnpwdxblq
