document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=379054>Question 379054</A>: <I><SPAN STYLE=\"word-break: break-all;\"> well i dont know what kind of math is x+3=<BR>\n" );
document.write( "what is this called with x,a,b,f, </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #269193 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=269193\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In this expression, x is a variable which represents an unknown number. For algebra problems in which we know the value of x, we can replace x with this number.\r<BR>\n" );
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document.write( "Many times, you'll see something like f(x) (or g(x), h(x), etc.). This does not mean f times x. Instead, f(x) is a function in terms of x. For example, if f(x) = 4x + 3 and we want to find the value of f(10), we can replace x with 10 to obtain f(10) = 4*10 + 3 = 43. </SPAN>\n" );
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