document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1004978>Question 1004978</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boy is 10 years older than his brother. In 4 years he will be twice as old as<BR>\n" );
document.write( "his brother. Find the present age of each </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #621308 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=621308\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A boy is 10 years older than his brother. In 4 years he will be twice as old as<BR>\n" );
document.write( "his brother. Find the present age of each <BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "y = r + 10<BR>\n" );
document.write( "y+4 = 2(r+4)<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Substitute for \"y\" and solve for \"r\"::<BR>\n" );
document.write( "r+10 + 4 = 2r + 8<BR>\n" );
document.write( "------<BR>\n" );
document.write( "r = 6 (Brother's age now)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "y = r+10 = 16 (Boy's age now)<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );