document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=267858>Question 267858</A>: <I><SPAN STYLE=\"word-break: break-all;\"> t-u=1<BR>\n" );
document.write( "t+v=2<BR>\n" );
document.write( "v-u=7\r<BR>\n" );
document.write( "\n" );
document.write( "Trying to help my daughter solve and am completely lost.  I appreciate your help !\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #196461 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=196461\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> t-u=1<BR>\n" );
document.write( "t+v=2<BR>\n" );
document.write( "v-u=7 <BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Express u and v in terms of \"t\".<BR>\n" );
document.write( "u = t-1<BR>\n" );
document.write( "v = 2-t<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Substitute into the 3rd equation so you can solve for \"t\":<BR>\n" );
document.write( "(2-t) - (t-1) = 7<BR>\n" );
document.write( "2-t-t+1 = 7<BR>\n" );
document.write( "-2t + 3 = 7<BR>\n" );
document.write( "-2t = 4<BR>\n" );
document.write( "t = -2<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "Since u = t-1, u = -2-1 = -3<BR>\n" );
document.write( "Since v = 2-t, v = 2--2 = 2+2 = 4<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Final answer:<BR>\n" );
document.write( "t = -2 ; u = -3 ; v = 4<BR>\n" );
document.write( "============================<BR>\n" );
document.write( "Check the answers in the original equations:<BR>\n" );
document.write( "t-u=1::::-2--3 = 1 ; -2+3 = 1 ; 1=1<BR>\n" );
document.write( "t+v=2::::-2+4 = 2  ; 2=2<BR>\n" );
document.write( "v-u=7:::: 4--3 = 7 ; 4+3 = 7 ; 7=7<BR>\n" );
document.write( "==================================== <BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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