document.write( "Question 885259: A book costs $3. Mr. Grayson spent $81 on books. The number of books, b, can be found by solving the equation 3b = 81. Which is the best method for solving the equation? \n" ); document.write( "
Algebra.Com's Answer #535013 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! Divide both sides by 3 to get\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3b = 81\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3b/3 = 81/3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "b = 27\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So Mr Grayson bought 27 books \n" ); document.write( " |