document.write( "Question 39656: 3x+5y=2
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document.write( "x+4y=-2 \n" );
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Algebra.Com's Answer #25071 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1) 3x+5y=2 \n" ); document.write( "2) x+4y=-2\r \n" ); document.write( "\n" ); document.write( "Solve the 2nd equation for \"x\": x=-2-4y \n" ); document.write( "Substitute into the 1st to get: \n" ); document.write( "3(-2-4y)+5y=2 \n" ); document.write( "-6-12y+5y=2 \n" ); document.write( "-7y=8 \n" ); document.write( "y=-8/7\r \n" ); document.write( "\n" ); document.write( "Substitute into the 1st or 2nd to get: \n" ); document.write( "x+4(-8/7)=-2 \n" ); document.write( "x-32/7=-14/7 \n" ); document.write( "x=18/7\r \n" ); document.write( "\n" ); document.write( "Solution: (18/7,-8/7) \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |