Solve the system of equations by using the inverse of the coefficient matrix. x + y + z = 3 x - y + 5z = 175x + y + z = 7
A. x = 3, y = -1, z = 1
B. x = 1, y = -1, z = 3
C. x = 3, y = 1, z = -1
D. No inverse, no solution for system
Answer: B
Mathematics
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Mathematics