Determine whether the given ordered pair is a solution of the system.
-$$\begin{array} { l }
( - 5 , - 5 ) \
4 x = 15 - y \
3 x = - 5 - 4 y
\end{array}$$
A) not a solution
B) solution

Question

Determine whether the given ordered pair is a solution of the system.
-$$\begin{array} { l } 
( - 5 , - 5 ) \
4 x = 15 - y \
3 x = - 5 - 4 y
\end{array}$$
A) not a solution
B) solution

Quizplus · Accepted Answer

Substituting $x = -5$ and $y = -5$ into both equations, for the first equation $4(-5) = 15 - (-5)$ gives $-20 = 20$, which is false. For the second equation, $3(-5) = -5 - 4(-5)$ gives $-15 = 15$, which is also false. Therefore, $(-5, -5)$ is not a solution to the system.

Determine Whether the Given Ordered Pair Is a Solution of the System