document.write( "Question 999307: 2x + 3z = 4
\n" ); document.write( "3y + 2z = 5
\n" ); document.write( "3x + 4y = −16
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\n" ); document.write( "\n" ); document.write( "2x + 4y − 2z = 14
\n" ); document.write( "x + 3y + 4z = 10
\n" ); document.write( "x + 2y − z = 18
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\n" ); document.write( "\n" ); document.write( "4x + 5y + z = 24
\n" ); document.write( "2x − y + 2z = 29
\n" ); document.write( "x + 2y + 2z = 21
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\n" ); document.write( "\n" ); document.write( " Solve by the addition method. \r
\n" ); document.write( "\n" ); document.write( "4x − y + z = 9
\n" ); document.write( "3x + 2y + z = 5
\n" ); document.write( "x − 2y + 3z = 15
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\n" ); document.write( "\n" ); document.write( "3x − 3y + 4z = 6
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\n" ); document.write( "x − 2y + 3z = 4
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\n" ); document.write( "\n" ); document.write( "5x + 3y − z = 3
\n" ); document.write( "3x − 2y + 4z = 21
\n" ); document.write( "4x + 3y + 5z = 32
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Algebra.Com's Answer #616976 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
2x + 4y − 2z = 14
\n" ); document.write( " x + 3y + 4z = 10
\n" ); document.write( " x + 2y − z = 18
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\n" ); document.write( " x + 3y + 4z = 10
\n" ); document.write( " x + 2y − z = 18
\n" ); document.write( "------------------------- Subtract
\n" ); document.write( "y + 5z = -8 Eqn A
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\n" ); document.write( "2x + 4y − 2z = 14
\n" ); document.write( "2x + 6y + 8z = 20 -- 2nd eqn times 2
\n" ); document.write( "--------------------------- Subtract
\n" ); document.write( "-2y - 10z = -6
\n" ); document.write( "-2y - 10z = 16 Eqn A times -2
\n" ); document.write( "----------------------- Subtract
\n" ); document.write( "0 = -22 --> inconsistent, no solution
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\n" ); document.write( "These are all the same problem, just different numbers.
\n" ); document.write( "Do them like that.
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