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Use Cramer's Rule to Solve the System of Equations $\mathrm { D } = 0 ; \varnothing$

Question 466

Question 466

Multiple Choice

Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.
-7x -87 =9y
-4x + 4y=4

A) Cramer's rule does not apply since $\mathrm { D } = 0 ; \varnothing$
B) $\{ ( - 6 , - 4 ) \}$
C) $\{ ( - 6 , - 5 ) \}$
D) $\{ ( - 7 , - 4 ) \}$

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