i usually solve 3 unknown sim equations using cramer's rule because it's systemic and fast, however today i encountered an equation that cramer's rule failed against age old tradition elimination and substitution method(adsbygoogle = window.adsbygoogle || []).push({});

-2A + B = -2

-2A - B - C = -4

2A - 3B - C = 0

usually i dont get nice interger numbers like that...

- how do i determine if a set of equations will fail to cramer's rule?

- any other helpful comments ?

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# Limitations of cramer's rule

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