document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=681038>Question 681038</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Lisa will be twice as old as her brother Ralph in 6 years. Lisa was three times as old as Ralph 3 years ago. What are their ages now?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #422561 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=422561\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=Ralph' age now<BR>\n" );
document.write( "And Let y=Lisa's age now\r<BR>\n" );
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document.write( "y+6=2(x+6);<BR>\n" );
document.write( "y+6=2x+12;<BR>\n" );
document.write( "2x-y=-6-----------------eq1<BR>\n" );
document.write( "y-3=3(x-3);<BR>\n" );
document.write( "y-3=3x-9;<BR>\n" );
document.write( "3x-y=6----------------eq2<BR>\n" );
document.write( "subtract eq1 from eq2:<BR>\n" );
document.write( "x=12-----------Ralph's age now<BR>\n" );
document.write( "substitute x=12 in eq2<BR>\n" );
document.write( "3*12-y=6<BR>\n" );
document.write( "-y=6-36<BR>\n" );
document.write( "y=30-----------Lisa's age now<BR>\n" );
document.write( "CK<BR>\n" );
document.write( "30+6=2(12+6)<BR>\n" );
document.write( "36=36<BR>\n" );
document.write( "and<BR>\n" );
document.write( "30-3=3(12-3)<BR>\n" );
document.write( "27=27\r<BR>\n" );
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document.write( "Hope this helps----ptaylor<BR>\n" );
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