document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1178816>Question 1178816</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The combined age of a father and his son<BR>\n" );
document.write( "are 36.In seven years the father will<BR>\n" );
document.write( "be four times as old as his son.<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 #808224 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=808224\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The combined age of a father and his son<BR>\n" );
document.write( "are 36.In seven years the father will<BR>\n" );
document.write( "be four times as old as his son.\r<BR>\n" );
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document.write( "let father,s age be x<BR>\n" );
document.write( "son,s age be y\r<BR>\n" );
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document.write( "combined age of a father and his son<BR>\n" );
document.write( "are 36.\r<BR>\n" );
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document.write( "x+y=36---------------(1)\r<BR>\n" );
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document.write( "In seven years the father will<BR>\n" );
document.write( "be (x+7) years <BR>\n" );
document.write( "son's age will be( y+7) years\r<BR>\n" );
document.write( "\n" );
document.write( "father four times as old as his son<BR>\n" );
document.write( "(x+7) = 4(y+7)<BR>\n" );
document.write( "x+7 =4y+28<BR>\n" );
document.write( "x-4y=21----------------(2)\r<BR>\n" );
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document.write( "5y=15<BR>\n" );
document.write( "y=3<BR>\n" );
document.write( "x=33\r<BR>\n" );
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document.write( "father,s age 33 years<BR>\n" );
document.write( "son,s age  3 years\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );