document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=512347>Question 512347</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In 7 years Maria will be twice as old as she was 3 years ago. What is her 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 #342608 by </B><A HREF=/tutors/aboutme.mpl?userid=Maths68><B>Maths68(1474)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Maths68><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=Maths68><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=342608\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <BR>\n" );
document.write( "Present age of Maria = m\r<BR>\n" );
document.write( "\n" );
document.write( "In 7 years means we have to add 7 to the present age of Maria<BR>\n" );
document.write( "=m+7<BR>\n" );
document.write( "3 years ago means we have to subtract 3 from her present age<BR>\n" );
document.write( "=m-3<BR>\n" );
document.write( "then<BR>\n" );
document.write( "m+7=2(m-3)<BR>\n" );
document.write( "m+7=2m-6<BR>\n" );
document.write( "m=2m-6-7<BR>\n" );
document.write( "m-2m=-13<BR>\n" );
document.write( "-m=-13<BR>\n" );
document.write( "Multiply by (-1) both sides <BR>\n" );
document.write( "m=13\r<BR>\n" );
document.write( "\n" );
document.write( "Maria is 13 years old now. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );