document.write( "Question 949413: Derive the inverse of the function, F-1 of f(x) = 7x + 2 \n" ); document.write( "
Algebra.Com's Answer #579629 by rothauserc(4718)\"\" \"About 
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y = 7x + 2
\n" ); document.write( "solve for x
\n" ); document.write( "7x = (y - 2)
\n" ); document.write( "divide both sides of = by 7
\n" ); document.write( "x = (y - 2) / 7
\n" ); document.write( "now switch x's and y's
\n" ); document.write( "y = (x - 2) / 7
\n" ); document.write( "therefore
\n" ); document.write( "f inverse of f(x) = (x - 2) / 7\r
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