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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §11.4 Matrices and Linear Equations, #18 · Linear Algebra · Linear systems

Try Cramer's Rule when there is no solution or infinitely many: …

Try Cramer's Rule when there is no solution or infinitely many:
$3 x + y = 0$ or $3 x + y = 1$
$6 x + 2 y = 2$ or $6 x + 2 y = 2$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §11.4 Matrices and Linear Equations, #18

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