document.write( "Question 1167305: Josef’s father is seven time as old as he is. One year ago, he was nine times as old as Josef.Find Josef’s present age? \n" ); document.write( "

Algebra.Com's Answer #791914 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "Let x = Josef's age.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Then his father's age is 7x, according to the condition.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "One year ago\r\n" );
document.write( "\r\n" );
document.write( "    7x - 1 = 9*(x-1)\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Simplify and solve\r\n" );
document.write( "\r\n" );
document.write( "    7x - 1 = 9x - 9\r\n" );
document.write( "\r\n" );
document.write( "    9 - 1 = 9x - 7x\r\n" );
document.write( "\r\n" );
document.write( "      8   = 2x\r\n" );
document.write( "\r\n" );
document.write( "      x   = 8/2 = 4.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "ANSWER.  Josef is 4 years old now.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );