Question 1202811
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The corresponding system of equations is<br>
(1) 1x+0y = 5
(2) 0x+1y = -7
(3) 0x+0y = 0<br>
part a: That is clearly 3 equations in 2 variables.<br>
part b: The formal mathematical definition of overdetermined is that there are more equations than there are variables.  So, despite that fact that the third equation provides no useful information that can contradict the solution obtained from the first two equations, this system is overdetermined.<br>
part c: The first two equations directly from the matrix give the single solution to the system: (x,y) = (5,-7)<br>