document.write( "Question 1010033: there are 25 students in class. the number of girls is 2 less than twice the number of boys. how many boys are in the class? \n" ); document.write( "
Algebra.Com's Answer #625594 by ikleyn(52790)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "There are 25 students in class. the number of girls is 2 less than twice the number of boys. How many boys are in the class? \n" ); document.write( "--------------------------------------------------------------\r \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "It is very simple problem.\r\n" ); document.write( "\r\n" ); document.write( "Let x be (unknown) number of boys.\r\n" ); document.write( "\r\n" ); document.write( "Then the number of girls is (2x-2), according to the condition, right?\r\n" ); document.write( "\r\n" ); document.write( "When we sum them up, you will get an equation\r\n" ); document.write( "\r\n" ); document.write( "x + (2x - 2) = 25.\r\n" ); document.write( "\r\n" ); document.write( "Simplify and solve it:\r\n" ); document.write( "\r\n" ); document.write( "3x = 25 + 2 = 27.\r\n" ); document.write( "\r\n" ); document.write( "Hence, x = \n" ); document.write( " \n" ); document.write( " |