document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1192843>Question 1192843</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I’m 25. My father is 2 times my age. When I’ll be 50, how old is my father?express mathematically<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #824760 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=824760\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> your age now is 25.<BR>\n" );
document.write( "your father's age now is 2 * 25 = 50<BR>\n" );
document.write( "you will be 50 in 50 - 25 = 25 years.<BR>\n" );
document.write( "your father will be 50 + 25 = 75 in 25 years.<BR>\n" );
document.write( "when you are 50, your father will be 75.\r<BR>\n" );
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document.write( "i think that, algebraically, your father's age will be 25 years more than your age.<BR>\n" );
document.write( "algebraically that would be y = x + 25.<BR>\n" );
document.write( "y is your father's age.<BR>\n" );
document.write( "x is your age.\r<BR>\n" );
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document.write( "when x = 25, then y = 25 + 25 = 50<BR>\n" );
document.write( "when x = 50, then y = 50 + 25 = 75\r<BR>\n" );
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document.write( "note that, when x = 25, y is also equal to 2 * x, but that only occurs when x = 25.\r<BR>\n" );
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document.write( "to confirm, you have two equations that need to be solved simultaneously.<BR>\n" );
document.write( "they are:<BR>\n" );
document.write( "y = 2x<BR>\n" );
document.write( "y = x + 25<BR>\n" );
document.write( "replace y with 2x in the second equation to get:<BR>\n" );
document.write( "2x = x + 25<BR>\n" );
document.write( "subtract x from both sides of the equation to get:<BR>\n" );
document.write( "2x - x = 25<BR>\n" );
document.write( "solve for x to get:<BR>\n" );
document.write( "x = 25.\r<BR>\n" );
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document.write( "your solution is that the algebraic equation is y = x + 25.<BR>\n" );
document.write( "y is your father's age.<BR>\n" );
document.write( "x is your age.\r<BR>\n" );
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