document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=818814>Question 818814</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Monica is one year older than twice of her sister. The difference of their ages is 18. find their present age. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #492801 by </B><A HREF=/tutors/aboutme.mpl?userid=jhunjiro><B>jhunjiro(67)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jhunjiro><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=jhunjiro><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=492801\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let:<BR>\n" );
document.write( "x=age of her sister<BR>\n" );
document.write( "2x+1= age of monica\r<BR>\n" );
document.write( "\n" );
document.write( "Solution:\r<BR>\n" );
document.write( "\n" );
document.write( "age of monica - age of her sister = 18\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%282x%2B1%29+-+x+=+18 ALIGN=MIDDLE  ALT=\"+%282x%2B1%29+-+x+=+18\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2x-x+=18-1+ ALIGN=MIDDLE  ALT=\"+2x-x+=18-1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=17+ ALIGN=MIDDLE  ALT=\"+x+=17+\"   DISABLED_style= \"max-width:90%; height:auto;\" > age of her sister\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2x%2B1 ALIGN=MIDDLE  ALT=\"+2x%2B1\"   DISABLED_style= \"max-width:90%; height:auto;\" >= age of monica<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2%2817%29%2B1%7D%7D%0D%0A%7B%7B%7B+34%2B1 ALIGN=MIDDLE  ALT=\"+2%2817%29%2B1%7D%7D%0D%0A%7B%7B%7B+34%2B1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+35+ ALIGN=MIDDLE  ALT=\"+35+\"   DISABLED_style= \"max-width:90%; height:auto;\" >= age of monica\r<BR>\n" );
document.write( "\n" );
document.write( "Final Answer:\r<BR>\n" );
document.write( "\n" );
document.write( "Age of Monica is 35.<BR>\n" );
document.write( "Age of her sister is 17.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );