document.write( "Question 20089: Linear System
\n" ); document.write( " $\"2x%2B3y-z=14\"$
\n" ); document.write( " $\"x-y-z=0\"$
\n" ); document.write( " $\"3x%2B2y-3z=15\"$ \r
\n" ); document.write( "\n" ); document.write( "x= y= z= \n" ); document.write( "

Algebra.Com's Answer #9677 by vidyamanohar(13) $\"\"$ $\"About$

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$\"2x%2B3y-z=14\"$ ....(i)
\n" ); document.write( " $\"x-y-z=0\"$ ...(ii)
\n" ); document.write( " $\"3x%2B2y-3z=15\"$ ....(iii)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "subtracting 3 times (ii) from (iii), we get
\n" ); document.write( " $\"5y=15\"$ which gives $\"y=3\"$ \r
\n" ); document.write( "\n" ); document.write( "subtracting (ii) from (i), we get
\n" ); document.write( " $\"x%2B4y=14\"$
\n" ); document.write( "and using y=3 we get
\n" ); document.write( " $\"x=2\"$ \r
\n" ); document.write( "\n" ); document.write( "using the values of x and y in (i) we get $\"z=-1\"$ \n" ); document.write( "

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