document.write( "Question 478756: Can someone please help solve the following system of equations
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document.write( "2y=x+6
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document.write( " y=5+4x-x^2 \n" );
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Algebra.Com's Answer #328013 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 2y=x+6..........1 \n" ); document.write( " y=5+4x-x^2 .....2 \n" ); document.write( "substitute y in (1)\r \n" ); document.write( "\n" ); document.write( "2*(5+4x-x^2)=x+6 \n" ); document.write( "10+8x-2x^2=x+6 \n" ); document.write( "-2x^2+7x+4=0 (divide by -1) \n" ); document.write( "2x^2-7x-4=0 \n" ); document.write( "2x^2-8x+x-4=0 \n" ); document.write( "2x(x-4)+1(x-4)=0\r \n" ); document.write( "\n" ); document.write( "(2x+1)(x-4)=0 \n" ); document.write( "x=4 OR x=-1/2\r \n" ); document.write( "\n" ); document.write( "Plug the values of x in (1) 2y=x+6 \n" ); document.write( "2y=10 so x=5 \n" ); document.write( "(4,5) \n" ); document.write( "2y=x+6 x=-1/2 \n" ); document.write( "2y=-1/2+6 \n" ); document.write( "2y=11/2 \n" ); document.write( "y=11/4 \n" ); document.write( "(-1/2,11/4)\r \n" ); document.write( "\n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |