document.write( "Question 919993: Let f(x)=2x+7 and
\n" ); document.write( " g(x)=3x+c. Find c if (f#g)(x)=(g#f)(x) for all x. Thank you.
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Algebra.Com's Answer #558105 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"f%28g%29=g%28f%29\"$
\n" ); document.write( " $\"2%283x%2Bc%29%2B7=3%282x%2B7%29%2Bc\"$
\n" ); document.write( " $\"6x%2B2c%2B7=6x%2B21%2Bc\"$
\n" ); document.write( " $\"c=14\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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