document.write( "Question 41903: x-6y=11
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document.write( "3y-3x=12 \n" );
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Algebra.Com's Answer #27015 by psbhowmick(878)![]() ![]() You can put this solution on YOUR website! x - 6y = 11___________(1)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3y - 3x = 12 \n" ); document.write( "or y - x = 12/3 \n" ); document.write( "or y - x = 4___________(2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Adding (1) and (2) we can eliminate 'x'. \n" ); document.write( "Thus we have, \n" ); document.write( "y - 6y = 4 + 11 \n" ); document.write( "or -5y = 15 \n" ); document.write( "or y = -15/5 = -3 \n" ); document.write( "Substituting y = -3 in (2) we have \n" ); document.write( "-3 - x = 4 \n" ); document.write( "or x = -3 -4 = -7\r \n" ); document.write( "\n" ); document.write( "Answer: x = -7, y = -3 \n" ); document.write( " |