document.write( "Question 1126690: Perform the row operations indicated beside the matrix. Write the matrix obtained.\r
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\n" ); document.write( "\n" ); document.write( " −R3 + R1 → R1\r
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Algebra.Com's Answer #743017 by ikleyn(52787)\"\" \"About 
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document.write( "The assignment says:\r\n" );
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document.write( "    Take the third row elements (numbers).  Change their signs.\r\n" );
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document.write( "    Then add what you got to the first line elements (numbers).\r\n" );
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document.write( "    Then write the final result (the final row of numbers) in the first row of the given matrix,\r\n" );
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document.write( "         by overlying (over-posing) the original values there.\r\n" );
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