Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many
solutions.
-$$\left\{ \begin{array} { l }
x + y = 5 \
3 x + 3 y = 15
\end{array} \right.$$
A) $( 0,0 )$
B) $( 5,0 )$
C) Inconsistent
D) Infinitely many solutions

Question

Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many
solutions.
-$$\left\{ \begin{array} { l } 
x + y = 5 \
3 x + 3 y = 15
\end{array} \right.$$
A) $( 0,0 )$
B) $( 5,0 )$
C) Inconsistent
D) Infinitely many solutions

Quizplus · Accepted Answer

The second equation is a multiple of the first, indicating the two lines are coincident, thus the system has infinitely many solutions.

Solve Using Cramer's Rule, If Possible {x+y=53x+3y=15\left\{ \begin{array} { l } x + y = 5 \\3 x + 3 y = 15\end{array} \right.{x+y=53x+3y=15​

Solve Using Cramer's Rule, If Possible $\left\{ \begin{array} { l } x + y = 5 \\3 x + 3 y = 15\end{array} \right.$