document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=258861>Question 258861</A>: <I><SPAN STYLE=\"word-break: break-all;\"> jack is 8 years older than jill. 7 years from now the sum of their ages will be 64. how old is jill now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #190580 by </B><A HREF=/tutors/aboutme.mpl?userid=Stitch><B>Stitch(470)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Stitch><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=190580\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Setup<BR>\n" );
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document.write( "Let Jack's age = A<BR>\n" );
document.write( "Let Jill's age = B\r<BR>\n" );
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document.write( "Equation 1: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+B+%2B+8 ALIGN=MIDDLE  ALT=\"A+=+B+%2B+8\"   DISABLED_style= \"max-width:90%; height:auto;\" >  (Jack is 8 years older than Jill)<BR>\n" );
document.write( "Equation 2: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28A+%2B+7%29+%2B+%28B+%2B+7%29+=+64 ALIGN=MIDDLE  ALT=\"%28A+%2B+7%29+%2B+%28B+%2B+7%29+=+64\"   DISABLED_style= \"max-width:90%; height:auto;\" >  (To obtain their ages in seven years)\r<BR>\n" );
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document.write( "Solution<BR>\n" );
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document.write( "Substitute equation 1 into equation 2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28B+%2B+8%29+%2B+7%29+%2B+%28B+%2B+7%29+=+64 ALIGN=MIDDLE  ALT=\"%28B+%2B+8%29+%2B+7%29+%2B+%28B+%2B+7%29+=+64\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2B+%2B+22+=+64 ALIGN=MIDDLE  ALT=\"2B+%2B+22+=+64\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 22 from both sides<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2B+=+42 ALIGN=MIDDLE  ALT=\"2B+=+42\"   DISABLED_style= \"max-width:90%; height:auto;\" > Divide both sides by 2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28B+=+21%29 ALIGN=MIDDLE  ALT=\"highlight%28B+=+21%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );