document.write( "Question 264216: One number is five more than three times a small one. If four times the larger number is subtracted from twice the smaller one, the result is zero. Find each of the numbers. \n" ); document.write( "
Algebra.Com's Answer #194562 by dabanfield(803)![]() ![]() ![]() You can put this solution on YOUR website! One number is five more than three times a small one. If four times the larger number is subtracted from twice the smaller one, the result is zero. Find each of the numbers. \r \n" ); document.write( "\n" ); document.write( "Let x be the smaller number and y the larger number. Then we have:\r \n" ); document.write( "\n" ); document.write( "1.) y = 3x + 5 \n" ); document.write( "2.) 2x - 4y = 0\r \n" ); document.write( "\n" ); document.write( "Solve these equations simultaneously by substitution.\r \n" ); document.write( "\n" ); document.write( "Substitute 3x + 5 for y from equation 1.) in equation 2.): \r \n" ); document.write( "\n" ); document.write( "2x - 4(3x + 5) = 0 \n" ); document.write( "2x - 12x - 20 = 0 \n" ); document.write( "10x = -20 \n" ); document.write( "x = -2\r \n" ); document.write( "\n" ); document.write( "Now to find y substitute -2 for x in equation 1.). \n" ); document.write( " |