document.write( "Question 895354: If I am four times older than my daughter and in 20 years time I shall be twice as old as her. How old are we today? \n" ); document.write( "
Algebra.Com's Answer #542766 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
f=4*d
\n" ); document.write( "f+20=2*(d+20)
\n" ); document.write( "f+20=2*d+40
\n" ); document.write( "f=2*d+20
\n" ); document.write( "4*d=2*d+20
\n" ); document.write( "2d=20
\n" ); document.write( "d=10
\n" ); document.write( "f=40
\n" ); document.write( "check\r
\n" ); document.write( "\n" ); document.write( "40+20=2(10+20)
\n" ); document.write( "60=60\r
\n" ); document.write( "\n" ); document.write( "ok\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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