document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=878856>Question 878856</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the difference of two numbers is 4.if 7 is added to the bigger number,the result will be two times the smaller number.find the big number among two. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #530349 by </B><A HREF=/tutors/aboutme.mpl?userid=JulietG><B>JulietG(1812)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JulietG><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=JulietG><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=530349\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A = B + 4<BR>\n" );
document.write( "A + 7 = 2B<BR>\n" );
document.write( "Substitute the known value of A from the first equation into the second.<BR>\n" );
document.write( "(B+4) + 7 = 2B<BR>\n" );
document.write( "Add<BR>\n" );
document.write( "B + 11 = 2B<BR>\n" );
document.write( "Subtract B from each side.<BR>\n" );
document.write( "11 = B<BR>\n" );
document.write( ".<BR>\n" );
document.write( "If B is 11, then A must be 4 more, or 15.<BR>\n" );
document.write( "15 + 7 is indeed twice 11.<BR>\n" );
document.write( "Success! </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );