document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=26225>Question 26225</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 7-3(5t-10)+67<BR>\n" );
document.write( "is the answer t=6 or t=2<BR>\n" );
document.write( "Do I take -3x5t and -3x-10 or just 3x5t and 3x-10.  I always get that mixed up.<BR>\n" );
document.write( "Do you have an tips for me in algebra.<BR>\n" );
document.write( "Thank you for your help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #14100 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=14100\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> there is no answer for t, since you do not have an equation... no equals sign.\r<BR>\n" );
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document.write( "To simplify 7-3(5t-10)+67, we do the following:\r<BR>\n" );
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document.write( "7-3(5t-10)+67<BR>\n" );
document.write( "7-15t+30+67<BR>\n" );
document.write( "90-15t<BR>\n" );
document.write( "or 15(6-t) as a factorised version.\r<BR>\n" );
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document.write( "How to do it?<BR>\n" );
document.write( "the full expression is +7 + -3*(+5*t + -10) + +67<BR>\n" );
document.write( "the brackets tell you to multiply the -3 by +5t and by -10, giving \r<BR>\n" );
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document.write( "+7 + -15t + +30 + +67\r<BR>\n" );
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document.write( "now in places we have 2 signs together (since we use + and - for 2 seperate things --> ADD-SUBTRACT and also POSITIVE-NEGATIVE.\r<BR>\n" );
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document.write( "So, rules are: +- or -+ can be thought of as SUBTRACTING ie + -15t is just -15t<BR>\n" );
document.write( "and ++ or -- can be thought of as ADDING\r<BR>\n" );
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document.write( "so,<BR>\n" );
document.write( "+7 - 15t + 30 + 67<BR>\n" );
document.write( "which gets you the same answer i gave... my version above is done without writing all the signs out, because \"we do not need them, because we know which ones are not written\". Obviously, learning algebra, you need to learn the fact that some are missing and \"put them in, in your head\".\r<BR>\n" );
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document.write( "I hope that helps?\r<BR>\n" );
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document.write( "jon.<BR>\n" );
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