Verified answer

2x + 3y = 3,

x + 2y = 1

matriz A

2 3

1 2

det(A) = 4 - 3 = 1

matriz Ax

3 3

1 2

det(Ax) = 6 - 3 = 3

matriz Ay

2 1

3 1

det(Ay) = 2 - 3 = -1

x = det(Ax)/det(A) = 3/1 = 3

y = det(Ay)/det(A) = -1/1 = -1

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