document.write( "Question 1023814: Solve the system by elimination.
\n" ); document.write( "-4x-5y-z=18
\n" ); document.write( "-2x-5y-2z=12
\n" ); document.write( "-2x+5y+2z=4 \n" ); document.write( "
Algebra.Com's Answer #639384 by Alan3354(69443)\"\" \"About 
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Solve the system by elimination.
\n" ); document.write( "-4x-5y-z=18
\n" ); document.write( "-2x-5y-2z=12
\n" ); document.write( "-2x+5y+2z=4
\n" ); document.write( "-------------
\n" ); document.write( "Pick a variable to eliminate 1st.
\n" ); document.write( "All y terms have the same coefficient 5:
\n" ); document.write( "---
\n" ); document.write( "-4x-5y-z=18
\n" ); document.write( "-2x-5y-2z=12
\n" ); document.write( "------------------ Subtract
\n" ); document.write( "-2x + z = 6 Eqn A
\n" ); document.write( "---
\n" ); document.write( "-2x-5y-2z=12
\n" ); document.write( "-2x+5y+2z=4
\n" ); document.write( "--------------------- Add
\n" ); document.write( "-4x = 16
\n" ); document.write( "--> x = -4 ************
\n" ); document.write( "---
\n" ); document.write( "-2x + z = 6 Eqn A
\n" ); document.write( "--> z = -2 ************
\n" ); document.write( "---
\n" ); document.write( "-2x+5y+2z=4
\n" ); document.write( "--> y = 0 *************
\n" ); document.write( "====================
\n" ); document.write( "(-4,0,-2)\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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