document.write( "Question 55515: the sum of two numbers is two. the difference between eight and twice the smaller number is two less than four times the larger. Find the two numbers
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #37696 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! the sum of two numbers is two. \n" ); document.write( "x + y = 2 \n" ); document.write( "x = (2 - y); substitute for x in the 2nd equation \n" ); document.write( ": \n" ); document.write( "the difference between eight and twice the smaller number is two less than four times the larger. Let the smaller number be x: \n" ); document.write( " 8 - 2x = 4y - 2 \n" ); document.write( " -2x - 4y = -2 - 8 \n" ); document.write( ": \n" ); document.write( "Get rid of all the negatives, mult eq by -1: \n" ); document.write( " 2x + 4y = +10 \n" ); document.write( ": \n" ); document.write( "Substitute (2-y) for x: \n" ); document.write( "2(2-y) + 4y = 10 \n" ); document.write( "4 - 2y +4y = 10 \n" ); document.write( " 2y = 10 -4 \n" ); document.write( " y = 6/2 \n" ); document.write( " y = +3 \n" ); document.write( ": \n" ); document.write( "Use x + y = 2 to find the value of x: \n" ); document.write( "x + 3 = 2 \n" ); document.write( " x = 3 -3 \n" ); document.write( " x = -1 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check the solutions: \n" ); document.write( " 8 - 2x = 4y - 2 \n" ); document.write( " 8 - 2(-1) = 4(3) - 2 \n" ); document.write( " 8 + 2 = 12 - 2 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |