document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=455774>Question 455774</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The age of Betty's mother is 7 years more than twice Betty's age. The difference in their ages is 21 years. How old is Betty? Show the linear equation in one variable that you used then show each step in solving for your answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #312890 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=312890\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> m=2b+7<BR>\n" );
document.write( "m-b=21<BR>\n" );
document.write( "m=b+21<BR>\n" );
document.write( "2b+7=b+21<BR>\n" );
document.write( "2b=b+14<BR>\n" );
document.write( "b=14<BR>\n" );
document.write( "m=35<BR>\n" );
document.write( "check<BR>\n" );
document.write( "35=2*14+7<BR>\n" );
document.write( "35=28+7<BR>\n" );
document.write( "35=35<BR>\n" );
document.write( "ok\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );