document.write( "Question 1105677: solve the problem using matrix.\r
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Algebra.Com's Answer #720549 by Edwin McCravy(20065)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "It has only one solution (x,y,z,w) = (0,0,0,0)\r\n" );
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document.write( "Edwin
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