3 years ago

X + 2y = 5

1 answer:

Aneli [31]3 years ago

8 0

Answer:

-5

Step-by-step explanation:

The given system is

$x + 2y = 5 \\ x - 3y = 7$

The corresponding coefficient matrix is shown in attachment.

The value of the system determinant, is the determinant of the coefficient matrix.

Which is

$- 3 \times 1 - 2 \times 1 = - 5$

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