# system

18. ### System of Equation: Value Problem

I have just taken a test and know that I got this problem wrong (I copied it to my scratch paper to ask here). My book provided me many useful examples for comparable questions, but not one quite like this (checked twice). I am wondering what the solution is for this problem, as I sadly have no...
19. ### System of equations

Here is the system: xy-Ax-Bx=0 xy-y-15x=0 The task is to find A and B. Is it possible?
20. ### System of equations

There is no system of linear equations over R that has exactly two solutions. True or False. Justify your answer with a short proof or by a counter example.