document.write( "Question 1044769: X+y+z=6
\n" ); document.write( "X-y+z=2
\n" ); document.write( "2x+y-z=1
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Algebra.Com's Answer #660188 by MathTherapy(10552)\"\" \"About 
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\n" ); document.write( "X+y+z=6
\n" ); document.write( "X-y+z=2
\n" ); document.write( "2x+y-z=1
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x + y + z = 6 -------- Considering X is same as x ------- eq (i)
\n" ); document.write( "x - y + z = 2 -------- Considering X is same as x ------- eq (ii)
\n" ); document.write( "2x + y - z = 1 ------- eq (iii)
\n" ); document.write( "2y = 4 ------ Subtracting eq (ii) from eq (i)
\n" ); document.write( "y = \"4%2F2\", or 2\r
\n" ); document.write( "\n" ); document.write( "3x = 3 ------ Adding eqs (ii) & (iii)
\n" ); document.write( "x = \"3%2F3\", or 1\r
\n" ); document.write( "\n" ); document.write( "1 + 2 + z = 6 ------- Substituting 1 for x, and 2 for y in eq (i)
\n" ); document.write( "3 + z = 6
\n" ); document.write( "z = 6 - 3, or 3
\n" ); document.write( "Solution set: \"highlight_green%28system%28x+=+1%2C+y+=+2%2C+z+=+3%29%29\" \n" ); document.write( "
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