document.write( "Question 103712: The sum of two numbers is 39.Twice the first number plus three times the second number is 101. \n" ); document.write( "
Algebra.Com's Answer #75519 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! let x=first, y=second ... x+y=39 ... x=39-y\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x+3y=101 ... substituting for x gives 2(39-y)+3y=101 ... 78-2y+3y=101 ... y=23\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x=39-y ... x=39-23 ... x=16 \n" ); document.write( " |