The solution for the system of equations are:

Attached is the graph of lines y=3x-2 and y=-2x+5.
Left to right. Whatever comes first (multiplication or division) you do. This is all part of the PEMDAS/Order of operations.
Hopefully I solved your problem! :)
Diversification is putting more money into more then one investment
It's a bit hard to explain but I hope this helps