document.write( "Question 369455: Can someone please help with this problem I do not understand?
\n" ); document.write( "f(x)=x=7 what is f(-15)= \n" ); document.write( "

Algebra.Com's Answer #263277 by Edwin McCravy(20055) $\"\"$ $\"About$

You can put this solution on YOUR website!
f(x)=x+7 what is f(-15)=
\n" ); document.write( "------------------------
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "I will assume you made a typo and failed to hold down the shift key,\r\n" );
document.write( "and typed an = instead of a +.\r\n" );
document.write( "\r\n" );
document.write( "Start with \r\n" );
document.write( "\r\n" );
document.write( "f(x) = x + 7\r\n" );
document.write( "\r\n" );
document.write( "And everywhere you see x, instead of x write -15 instead of x\r\n" );
document.write( "\r\n" );
document.write( "and you have\r\n" );
document.write( "\r\n" );
document.write( "f(-15) = -15 + 7\r\n" );
document.write( "\r\n" );
document.write( "then you simplify the right side:\r\n" );
document.write( "\r\n" );
document.write( "f(-15) = -8\r\n" );
document.write( "\r\n" );
document.write( "and you are done.  \r\n" );
document.write( "\r\n" );
document.write( "[Note that f(x) does NOT mean fx nor does f(-15) mean -15f.  You leave\r\n" );
document.write( "f(-15) just as it is and the final answer is f(-15) = -8]  \r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Edwin

\n" ); document.write( "

\n" );