Find C and D Such That the Solution Set to the System

question 86

Multiple Choice

Find C and D such that the solution set to the system is {(5,4) }. $$\begin{aligned}C x + 2 y & = 18 \\- 3 x + \mathrm { D } y & = 9\end{aligned}$$

• A) C = 2; D = 6
• B) C = 4; D = 5
• C) C = 6; D = 2
• D) C = 5; D = 4

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