document.write( "Question 1127839: Solve the system of equation x+y+z=9, -x+y+z=1, and x-y-z=5\r
\n" ); document.write( "\n" ); document.write( "A. There is no solution.
\n" ); document.write( "B. There are infinitely many solutions.
\n" ); document.write( "C. There is one solution, x=4, y=2, and z=3.
\n" ); document.write( "D. There is not enough information to solve the problem \n" ); document.write( "

Algebra.Com's Answer #744317 by MathTherapy(10551) $\"\"$ $\"About$

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\n" ); document.write( "Solve the system of equation x+y+z=9, -x+y+z=1, and x-y-z=5\r
\n" ); document.write( "\n" ); document.write( "A. There is no solution.
\n" ); document.write( "B. There are infinitely many solutions.
\n" ); document.write( "C. There is one solution, x=4, y=2, and z=3.
\n" ); document.write( "D. There is not enough information to solve the problem
\n" ); document.write( "

  x + y + z = 9 ----- eq (i)
\n" );
document.write( "- x + y + z = 1 ----- eq (ii)
\n" );
document.write( "  x - y - z = 5 ----- eq (iii)
\n" );
document.write( "All you have to do here is ADD eqs (ii) & (iii). All 3 variables will be ZEROED out on the left, leaving the equation: 0 = 6.
\n" );
document.write( "Obviously, this is FALSE so no solutions exist (). \n" );
document.write( "

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