Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = 4, y = -3, z = -5, w = 2; (4, -3, -5, 2)
B. x = -4, y = 3, z = 5, w = -2; (-4, 3, 5, -2)
C. x = 
, y = - 
, z = - 
, w = 
; 
D. x = - 
, y = 
, z = 
, w = - 
; 
Answer: B
Mathematics
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A. 
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