Question

Use Cramer's rule to solve the system.
2x + 4y - z = 32 x - 2y + 2z = -5 5x + y + z = 20

A. {( 1, -9, -6)}

B. {( 2, 7, 6)}

C. {( 9, 6, 9)}

D. {( 1, 9, 6)}

Answer 1

for the first equation, do the same with the second one