Question

Consider the following system of equations. 4x + ay = −5 3x + by − 2z...

Consider the following system of equations.
4x + ay = −5
3x + by − 2z = 4
5x + cy + 4z = 0

And let

A =
4 a 0
3 b −2
5 c 4


Suppose that det(A) = 2. Use Cramer's rule to solve the above system for the variable y.
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