document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=661570>Question 661570</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Kurt is 12 years younger than Mark. When Mark's age is increased by 20% and Kurt's age is increased by 25%, the sum of their ages is 83. Find Kurt's age.\r<BR>\n" );
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document.write( "I am having a hard time coming up with the equation to solve.  I think the answer is 28, but I need an algebraic equation to solve.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #411688 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=411688\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Kurt is 12 years younger than Mark. When Mark's age is increased by 20% and Kurt's age is increased by 25%, the sum of their ages is 83. Find Kurt's age. <BR>\n" );
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document.write( "let x=Kurt's age<BR>\n" );
document.write( "x+12=Mark's age<BR>\n" );
document.write( "25% increase in Kurt's age=25%x=.25x<BR>\n" );
document.write( "20% increase in Mark's age=20%(x+12)=.2x+2.4<BR>\n" );
document.write( "..<BR>\n" );
document.write( "[x+.25x]+[(x+12)+(.2x+2.4)]=83<BR>\n" );
document.write( "x+.25x+x+12+.2x+2.4=83<BR>\n" );
document.write( "2.45x+14.4=83<BR>\n" );
document.write( "2.45x=68.6<BR>\n" );
document.write( "x=28<BR>\n" );
document.write( "Kurt's age=28 </SPAN>\n" );
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