Solve the System of Equations Using Substitution $$\left\{ \begin{array} { r } x y = 20 \\x + y = 9\end{array} \right.$$

question 19

Multiple Choice

Solve the system of equations using substitution.
- $$\left\{ \begin{array} { r } x y = 20 \\x + y = 9\end{array} \right.$$

• A) \(x = 20 , y = 1 ; x = 1 , y = 20\)
• B) \(x = 10 , y = 2 ; x = 2 , y = 10\)
• C) \(x = 6 , y = 3 ; x = 3 , y = 6\)
• D) \(x = 5 , y = 4 ; x = 4 , y = 5\)

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