document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=350070>Question 350070</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A is 4 years older than b,who is 3 times as old as c.if the sum of their ages is 25 how old is b?<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 #250196 by </B><A HREF=/tutors/aboutme.mpl?userid=algae132><B>algae132(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=algae132><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=250196\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x represent c's age. So the ages of the other people in terms of c, are:<BR>\n" );
document.write( "b = 3x<BR>\n" );
document.write( "a = 3x + 4\r<BR>\n" );
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document.write( "We know that; a + b + c = 25<BR>\n" );
document.write( "Substitute in terms of x.\r<BR>\n" );
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document.write( "3x + 4 + 3x + x = 25<BR>\n" );
document.write( "7x + 4 = 25<BR>\n" );
document.write( "7x = 21<BR>\n" );
document.write( "x = 3\r<BR>\n" );
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document.write( "We know that b = 3x<BR>\n" );
document.write( "So, b = 3(3) = 9<BR>\n" );
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