![\left[\begin{array}{ccc}2(-9)+(-4)(-3)&2(2)+(-4)1\\0(-9)+2(-3)&0(2)+2(1)\\\end{array}\right] \\\\\left[\begin{array}{ccc}-6&0\\-6&2\\\end{array}\right] \\\\x=2](/tpl/images/0973/7630/dc35f.png)
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