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    Matrices
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    1. claytons 20 Dec 2024
      R1−R2→R1,R3+3R2→R3R1−R2→R1,R3+3R2→R3R_1 - R_2 \rightarrow R_1, \;\; R_3 + 3R_2 \rightarrow R_3\nonumber ⎛⎝⎜⎜1001131−1−12−1−1⎞⎠⎟⎟

      Isn't R3 + 3R2 ->R3 going to give you a 6 in the R3C2 position? Someone, please help explain...

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    math.libretexts.org/Bookshelves/Linear_Algebra/Supplemental_Modules_(Linear_Algebra)/1:_Matrices