document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=890222>Question 890222</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the answer to this word problem? Lisa noticed that in 7 years she'll be half her mother's age. If 3 years ago Lisa wa s 1/3 her mother's age, how old is her mother now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #538797 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=538797\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x be lisa's age and y be her mother's age, then<BR>\n" );
document.write( "x +7 = y /2<BR>\n" );
document.write( "x -3 = y /3<BR>\n" );
document.write( "solve the first equation for x<BR>\n" );
document.write( "first multiply both sides of = by 2<BR>\n" );
document.write( "2x +14 = y<BR>\n" );
document.write( "2x = y -14<BR>\n" );
document.write( "x =  y/2 -7<BR>\n" );
document.write( "substitute for x in second equation<BR>\n" );
document.write( "y/2 -7 -3 = y / 3<BR>\n" );
document.write( "multiply both sides of = by 6<BR>\n" );
document.write( "3y -60 = 2y<BR>\n" );
document.write( "y = 60<BR>\n" );
document.write( "Lisa's mother is 60 years old<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );