document.write( "Question 500501: solve f(x)+g(x)
\n" ); document.write( "when f(x)= 3x and f(x)=x+4
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Algebra.Com's Answer #338153 by chessace(471)\"\" \"About 
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\n" ); document.write( "One must be g(x).
\n" ); document.write( "Answer = 4x + 4
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