document.write( "Question 313929: Hello,
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document.write( "I am trying to figure out how to find the solution for this equation. \r
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document.write( "2x-y+3z=1
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document.write( "-x+2y-z=-2
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document.write( "x+y+2z=-1\r
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document.write( "Can anybody help me solve this problem?
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document.write( "thanks \n" );
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Algebra.Com's Answer #224437 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! 2x - y + 3z = 1 \n" ); document.write( "-x +2y - z =-2 \n" ); document.write( "x + y + 2z = -1 \n" ); document.write( ": \n" ); document.write( "No \n" ); document.write( "Multiply the last equation by -1 and add and see what happens \n" ); document.write( "2x - y + 3z = 1 \n" ); document.write( "-x +2y - z = -2 \n" ); document.write( "-x - y - 2z = 1 \n" ); document.write( "--------------------adding eliminates all three variables \n" ); document.write( " |