document.write( "Question 353872: hello, i need help solving this equation for z:\r
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document.write( "6xy+12xz+9yz=3xyz, solve for z.\r
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document.write( "(i tried to solve it myself and got x=7, but im pretty sure my answer is incorrect so if you could help me that would be great)\r
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document.write( "Thank you \n" );
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Algebra.Com's Answer #252964 by Alan3354(69443) You can put this solution on YOUR website! How did you get 7? \n" ); document.write( "------------------- \n" ); document.write( "6xy+12xz+9yz=3xyz, solve for z. \n" ); document.write( "Get all terms with a z on one side. \n" ); document.write( "12xz + 9yz = 3xyz - 6xy \n" ); document.write( "12xz + 9yz - 3xyz = - 6xy \n" ); document.write( "Factor out the z \n" ); document.write( "z*(12x + 9y - 3xy) = -6xy \n" ); document.write( "Divide by the polynomial \n" ); document.write( "z = -6xy/(12x + 9y - 3xy) \n" ); document.write( "Reduce \n" ); document.write( "z = -2xy/(4x + 3y - xy) \n" ); document.write( " \n" ); document.write( " |