document.write( "Question 983164: X+2y+z=7
\n" ); document.write( "X+3z=11
\n" ); document.write( "2x-3y=1
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #603983 by Timnewman(323)\"\" \"About 
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Call, x+2y+z=7---(1)
\n" ); document.write( " x+3z=11----(2)
\n" ); document.write( "2x-3y=1----(3)
\n" ); document.write( "from equ (1)
\n" ); document.write( "z=7-2y-x----(4)
\n" ); document.write( "substitute equ (4) in equ (2)
\n" ); document.write( "x+3(7-2y-x)=11
\n" ); document.write( "clear the bracket and get
\n" ); document.write( "x+3y=5----(5)
\n" ); document.write( "dd equ (3) and (5)
\n" ); document.write( "3x=6
\n" ); document.write( "divide bothsides by 3
\n" ); document.write( "3x/3=6/3
\n" ); document.write( "x=2.
\n" ); document.write( "from equ 3
\n" ); document.write( "y=(1-2x)/(-3)----(6)
\n" ); document.write( "put x=2 in equ 6
\n" ); document.write( "y=(1-2(2)/(-3)
\n" ); document.write( "y=(1-4)/(-3)
\n" ); document.write( "y=-3/(-3)
\n" ); document.write( "y=1
\n" ); document.write( "put the value of x and y in equ 4
\n" ); document.write( "z=7-2(1)-2
\n" ); document.write( "z=7-2-2
\n" ); document.write( "z=7-4
\n" ); document.write( "z=3
\n" ); document.write( "the value of x,y,z is 2,1,3 respectively.
\n" ); document.write( "HOPE THIS HELPS,,,,,
\n" ); document.write( " BEST REGARD
\n" ); document.write( " ___TIMNEWMAN \n" ); document.write( "
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