document.write( "Question 51294This question is from textbook Prentice Hall Algebra
\n" ); document.write( ": The weight of two books equals 39 pens. What is the answer. \n" ); document.write( "
Algebra.Com's Answer #34233 by mathchemprofessor(65)\"\" \"About 
You can put this solution on YOUR website!
Let the weight of one book be x pounds and that of one pen be y pounds.
\n" ); document.write( "Then the expression is
\n" ); document.write( "2x=39y
\n" ); document.write( "
\n" );