document.write( "Question 1095931: the total cost of 2 books and 7 pens is 79 rs and the total cost of 7 books and 5 pens is 77 rs. find the cost of1 book and 2 pens... \n" ); document.write( "
Algebra.Com's Answer #710428 by MathTherapy(10552)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "the total cost of 2 books and 7 pens is 79 rs and the total cost of 7 books and 5 pens is 77 rs. find the cost of1 book and 2 pens... \n" ); document.write( " \n" ); document.write( " |