document.write( "Question 295483: Solve using Cramers rule:\r
\n" ); document.write( "\n" ); document.write( "1. 2x + 5y = 1
\n" ); document.write( " 3x + 4y = 12\r
\n" ); document.write( "\n" ); document.write( "2. x - 5y = 4
\n" ); document.write( " -3x + 4y = 4\r
\n" ); document.write( "\n" ); document.write( "3. 2x + y - z = -7
\n" ); document.write( " x - 4y + 3z = 5
\n" ); document.write( " 6x - 2y + 5z = 9\r
\n" ); document.write( "\n" ); document.write( "Expand by column three:\r
\n" ); document.write( "\n" ); document.write( "4. 3 6 1 2
\n" ); document.write( " 5 9 0 3
\n" ); document.write( " -2 -1 0 11
\n" ); document.write( " 4 -2 0 12 \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #212947 by Deina(147)\"\" \"About 
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