document.write( "Question 1043635: Mr. Lee brought reading books to his class. If each student takes 5 books. there will be 15 books left. If 5 students do not take a book and the rest of the students take 7 books each, there will be no books left. How many books were brought to the class?
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document.write( " A) 140 B) 125 C) 120 D) 104 \n" );
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Algebra.Com's Answer #658774 by zjjc123(1)![]() ![]() ![]() You can put this solution on YOUR website! y=5x+15 y=7(x-5)\r \n" ); document.write( "\n" ); document.write( "y=5x+15 y=7x-35\r \n" ); document.write( "\n" ); document.write( "5x+15=7x-35\r \n" ); document.write( "\n" ); document.write( "15=2x-35\r \n" ); document.write( "\n" ); document.write( "2x=50\r \n" ); document.write( "\n" ); document.write( "x=25\r \n" ); document.write( "\n" ); document.write( "25 students\r \n" ); document.write( "\n" ); document.write( "140 books \n" ); document.write( " |