728 views
Consider the following system of equations:

$3x + 2y = 1$

$4x + 7z = 1$

$x + y + z = 3$

$x - 2y + 7z = 0$

The number of solutions for this system is ______________

Since equation (2) - equation (1) produces equation (4), we have 3 independent equations in 3 variables, hence unique solution.

selected

sorry for my handwriting!

+1 vote
Can someone plz find the rank of thie matrix using row transformations.I m not able to do so.Plz help