Use Cramer's Rule to Solve the System of Equations $\{ ( 5 , - 1 ) \}$

question 295

Multiple Choice

Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.
x+y=4
5x +5y =20

• A) \(\{ ( 5 , - 1 ) \}\)
• B) Cramer's rule does not apply since \(D = 0 ; \phi\)
• C) \(\{ ( 0,0 ) \}\)
• D) Cramer's rule does not apply since \(\mathrm { D } = 0 ; \{ ( 4 - \mathrm { y } , \mathrm { y } ) \}\)

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