document.write( "Question 1203444: \n" ); document.write( "

Algebra.Com's Answer #839015 by MathLover1(20855) $\"\"$ $\"About$

You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "if $\"+E\"$ is the midpoint of $\"+DF\"$ , then $\"+EF+=DF\"$ \r
\n" ); document.write( "\n" ); document.write( " If $\"+EF+=+x+%2B+9\"$ and $\"+DF+=+3x+%2B+9\"$ , then\r
\n" ); document.write( "\n" ); document.write( " $\"+x+%2B+9++=+3x+%2B+9\"$
\n" ); document.write( " $\"+9+-9+=+3x+-x\"$
\n" ); document.write( " $\"+0=+2x\"$
\n" ); document.write( " $\"+0=+x\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "what is $\"+DF\"$
\n" ); document.write( " $\"+DF+=+3%2A0+%2B+9\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"+DF+=++9\"$ \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );