document.write( "Question 417787: x+y+z=-9, 2x+4y+2z=-14, -x+6y-32=35 find solution _,_,_
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Algebra.Com's Answer #292463 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( " $\"x%2By%2Bz=-9\"$ ..............1\r
\n" ); document.write( "\n" ); document.write( " $\"2x%2B4y%2B2z=-14\"$ ...........2 \r
\n" ); document.write( "\n" ); document.write( " $\"-x%2B6y-32=35\"$ .............3..... find solution\r
\n" ); document.write( "\n" ); document.write( "---------------------- \r
\n" ); document.write( "\n" ); document.write( " $\"x%2By%2Bz=-9\"$ ..............1.solve for $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=-9-y-z\"$ .........plug in 2\r
\n" ); document.write( "\n" ); document.write( " $\"2x%2B4y%2B2z=-14\"$ ...........2 \r
\n" ); document.write( "\n" ); document.write( " $\"2%28-9-y-z%29%2B4y%2B2z=-14\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-18-2y-2z%2B4y%2B2z=-14\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"cross%28-2z%29%2B2y%2Bcross%282z%29=-14%2B18\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"2y=4\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=4%2F2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=2\"$ ..........plug in 3\r
\n" ); document.write( "\n" ); document.write( " $\"-x%2B6y-32=35\"$ .............3\r
\n" ); document.write( "\n" ); document.write( " $\"-x%2B6%2A2-32=35\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-x%2B12-32=35\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-x=35%2B32-12\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-x=55\"$ ....multiply by $\"-1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-x%28-1%29=55%28-1%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=-55\"$ ............plug $\"x\"$ and $\"y\"$ in 1 and find $\"z\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"x%2By%2Bz=-9\"$ ..............1\r
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\n" ); document.write( "\n" ); document.write( " $\"-55%2B2%2Bz=-9\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"z=-9%2B55-2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"z=44\"$ \r
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\n" ); document.write( "\n" ); document.write( "so, your solutions are:\r
\n" ); document.write( "\n" ); document.write( " $\"x=-55\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"z=44\"$ \r
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\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( " $\"2x%2B4y%2B2z=-14\"$ ...........2 \r
\n" ); document.write( "\n" ); document.write( " $\"2%28-55%29%2B4%2A2%2B2%2A44=-14\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-110%2B8%2B88=-14\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-110%2B96=-14\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"-14=-14\"$ \r
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