document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=729473>Question 729473</A>: <I><SPAN STYLE=\"word-break: break-all;\"> brittany is 5 years older than three times the age of her brother. The sum of their ages is 21. if x represents the age of her brother, write an equation that represents this situation </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #445877 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=445877\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> brittany is 5 years older than three times the age of her brother. The sum of their ages is 21. if x represents the age of her brother, write an equation that represents this situation<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "t = 3b + 5<BR>\n" );
document.write( "t + b = 21<BR>\n" );
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document.write( "Substitute for \"t\" and solve for \"b\":<BR>\n" );
document.write( "3b+5+b = 21<BR>\n" );
document.write( "4b = 16<BR>\n" );
document.write( "Brother's age = 4 years<BR>\n" );
document.write( "Brit's age = 3*4+5 = 17 years<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );