(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Ok the system we are working with is

x-2y =1

x-y+az=2

ay+9z=b

2. Relevant equations

1.)> For which values of a does the system have a unique solution?

2.)> For which pairs of values (a,b) does the system have more than one solution?

3.)>Why is it that the value of b has no effect on whether or not the system has a unique solution?

3. The attempt at a solution

Im going to be honest and say I don't really know where to begin on any of these. Is this a system of 3 equations with 5 unknowns? I know that's kind of a dumb question but I'm just making sure a and b are two variables aside from x y and z. Any help is apreciated

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# Homework Help: 3 Questions Regarding a particular system of unknowns x,y,z

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