(adsbygoogle = window.adsbygoogle || []).push({}); let A be a 3x3 matrix. Suppose that for every row vector y=[y1 y2 y3] there exists a row vector x=[x1 x2 x3] such that xA=y. Show that A is invertable

i honestly have no idea where to even go with this. any help would be appreciated (:

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# Linear Algebra help

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