Solve the system by the addition method.
-$$\left\{ \begin{array} { r }
5 x + 6 y = - 7 \
- 5 x - 13 y = 21
\end{array} \right.$$
A) $\{ ( - 1,2 ) \}$
B) $\{ ( x , y ) \mid 5 x + 6 y = - 7 \}$
C) $\varnothing$
D) $\{ ( 1 , - 2 ) \}$

Question

Solve the system by the addition method.
-$$\left\{ \begin{array} { r } 
5 x + 6 y = - 7 \
- 5 x - 13 y = 21
\end{array} \right.$$
A) $\{ ( - 1,2 ) \}$
B) $\{ ( x , y ) \mid 5 x + 6 y = - 7 \}$
C) $\varnothing$
D) $\{ ( 1 , - 2 ) \}$

Quizplus · Accepted Answer

The Answer of Solve the system by the addition method.
-$$\left\{ \begin{array} { r } 
5 x + 6 y = - 7 \
- 5 x - 13 y = 21
\end{array} \right.$$
A) $\{ ( - 1,2 ) \}$
B) $\{ ( x , y ) \mid 5 x + 6 y = - 7 \}$
C) $\varnothing$
D) $\{ ( 1 , - 2 ) \}$

Solve the System by the Addition Method {5x+6y=−7−5x−13y=21\left\{ \begin{array} { r } 5 x + 6 y = - 7 \\- 5 x - 13 y = 21\end{array} \right.{5x+6y=−7−5x−13y=21​

Solve the System by the Addition Method $\left\{ \begin{array} { r } 5 x + 6 y = - 7 \\- 5 x - 13 y = 21\end{array} \right.$