Use any method to solve the system of linear equations, find (x,y). $\left\{ \begin{aligned}
- x + 3 y & = 15 \
2 x + 3 y & = 6
\end{aligned} \right.$
A) (3, 4)
B) (4, -3)
C) (-3, -4)
D) (-3, 4)
E) (4, -3).

Question

Use any method to solve the system of linear equations, find (x,y).  $\left\{ \begin{aligned}
- x + 3 y & = 15 \
2 x + 3 y & = 6
\end{aligned} \right.$  
A) (3, 4)
B) (4, -3)
C) (-3, -4)
D) (-3, 4) 
E) (4, -3).

Quizplus · Accepted Answer

Adding the two equations $(-x + 3y) + (2x + 3y) = 15 + 6$ simplifies to $x + 6y = 21$. Solving this system by substitution or elimination, we find $x = -3$ and $y = 4$.

Use Any Method to Solve the System of Linear Equations {−x+3y=152x+3y=6\left\{ \begin{aligned}- x + 3 y & = 15 \\2 x + 3 y & = 6\end{aligned} \right.{−x+3y2x+3y​=15=6​

Use Any Method to Solve the System of Linear Equations $\left\{ \begin{aligned}- x + 3 y & = 15 \\2 x + 3 y & = 6\end{aligned} \right.$