document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=141294>Question 141294</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0130442631/algebrahomeworkh>algerbra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> How do I solve using a system of two equations in two variables?\r<BR>\n" );
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document.write( "Jack is twice as old as Jill. In two years, Jack will be 4 times as old as Jill was 9 years ago. How old are they now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #102977 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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/cgi-bin/show-face.mpl?user=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=102977\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x=Jack and y=Jill\r<BR>\n" );
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document.write( "\"Jack is twice as old as Jill\" __ x=2y\r<BR>\n" );
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document.write( "\"In two years, Jack will be 4 times as old as Jill was 9 years ago\" __ x+2=4(y-9)\r<BR>\n" );
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document.write( "substituting __ (2y)+2=4(y-9) __ 2y+2=4y-36 __ 38=2y __ 19=y\r<BR>\n" );
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document.write( "substituting __ x=2(19) __ x=38 </SPAN>\n" );
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