document.write( "Question 550370: very unsure how to solve this or what numbers to plug into the equations there are so many combinations. If I had to guess I would guess \"No Solutions\"\r
\n" ); document.write( "\n" ); document.write( "Solve the system Write your answer using parentheses and no spaces. Example (2,0,-3) or write \"No Solution\" for questions with no solution.\r
\n" ); document.write( "\n" ); document.write( "x + y + z = 6
\n" ); document.write( "2x - y + 2z = 6
\n" ); document.write( "-x + y + 3z = 10
\n" ); document.write( "

Algebra.Com's Answer #358670 by TutorDelphia(193)\"\" \"About 
You can put this solution on YOUR website!
Solve using the elimination method rather than guessing: First elimination one variable, then another\r
\n" ); document.write( "\n" ); document.write( "x + y + z = 6
\n" ); document.write( "plus
\n" ); document.write( "-x + y + 3z = 10
\n" ); document.write( "2y+4z=16\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "2x - y + 2z = 6
\n" ); document.write( "plus 2 times
\n" ); document.write( "-x + y + 3z = 10
\n" ); document.write( "-2x+2y+6z=20
\n" ); document.write( "which gives
\n" ); document.write( "y+5z=26
\n" ); document.write( "We already had:
\n" ); document.write( "2y+4z=16
\n" ); document.write( "multiply y+5z=26 by -2
\n" ); document.write( "-2y-10z=-52
\n" ); document.write( "-6z=-36
\n" ); document.write( "z=6\r
\n" ); document.write( "\n" ); document.write( "Now that we know z=6 sub it in 2y+4z=16
\n" ); document.write( "2y+24=16
\n" ); document.write( "2y=-8
\n" ); document.write( "y=-4\r
\n" ); document.write( "\n" ); document.write( "x + y + z = 6\r
\n" ); document.write( "\n" ); document.write( "x+-4+6=6
\n" ); document.write( "x=4\r
\n" ); document.write( "\n" ); document.write( "(4,-4,6)
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