document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=957436>Question 957436</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Michelle is 3 years older than her sister. In 10 year's time the sum of there ages will be 77 years. How old is each of them now. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #585031 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=585031\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> M=Michelle's age; S=sister's age=M-3yrs<BR>\n" );
document.write( "(M+10yrs)+(S+10yrs)=77yrs Subtract 20yrs from each side.<BR>\n" );
document.write( "M+S=57yrs Substitute for S.<BR>\n" );
document.write( "M+(M-3yrs)=57yrs Add 3yrs to each side.<BR>\n" );
document.write( "2M=60yrs Divide each side by 2.<BR>\n" );
document.write( "M=30 yrs ANSWER 1: Michelle is 30 years old.<BR>\n" );
document.write( "S=M-3yrs=30yrs-3yrs=27 yrs ANSWER 2: Sister is 27 years old.<BR>\n" );
document.write( "CHECK:<BR>\n" );
document.write( "(M+10yrs)+(S+10yrs)=77yrs<BR>\n" );
document.write( "(30+10yrs)+(27+10yrs)=77yrs<BR>\n" );
document.write( "40yrs+37yrs=77yrs<BR>\n" );
document.write( "77yrs=77yrs\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );