document.write( "Question 1200692: John is five times as old as his brother. The difference between their age is twelve years. What is John age? \n" ); document.write( "
Algebra.Com's Answer #834893 by ikleyn(52805)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( "Let x be the brother's age; then the John's age is 5x, years, according to the problem.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "The difference of ages is 12 years\r\n" ); document.write( "\r\n" ); document.write( " 5x - x = 12,\r\n" ); document.write( "\r\n" ); document.write( "or\r\n" ); document.write( "\r\n" ); document.write( " 4x = 12,\r\n" ); document.write( "\r\n" ); document.write( " x = 12/4 = 3.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "The brother is 3 years old; John is 3*5 = 15 years old.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "ANSWER. John is 15 years old.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "----------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This solution is so easy . . . \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You even may re-tell this solution in words - - - then you will get the MENTAL version of the solution.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |