Question

Does the following system have a unique solution? Why?

Answer 1

\[\left\{ 3x+2y=9 \right\}\]
\[\left\{ 14x+10y=14\right\}\]
A) Yes, because the determinant of the coefficient matrix is 2.
B) No, because the determinant of the coefficient matrix is 0.
C) Yes, because the determinant of the coefficient matrix is 0.
D) No, because the determinant of the coefficient matrix is 2.

Answer 2

@Luigi0210