document.write( "Question 201191: I can't come up with a solution to this can some one help please?
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document.write( "X+Y+2Z=8
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document.write( "X+Y+5Z=11
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document.write( "X+6Y+4Z=30 THE TRIPLE SOLUTION SET IS? \n" );
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Algebra.Com's Answer #151426 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! subtracting the 1st equation from the 2nd ___ 3Z = 3 ___ so, Z = 1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting gives ___ X + Y = 6 \n" ); document.write( "and ___ X + 6Y = 24\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "subtracting the two new equations gives ___ 5Y = 18 ___ so, Y = 3.6 (or 18/5)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting ___ X + 3.6 = 6 ___ X = 2.4 (or 12/5) \n" ); document.write( " |