document.write( "Question 875545: Hey! I really need an explanatory answer for this question:\r
\n" ); document.write( "\n" ); document.write( "Evaluate the function given F(x) = 3x + 1\r
\n" ); document.write( "\n" ); document.write( "F(a + 1 ) =
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Algebra.Com's Answer #528277 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Everywhere you see \"x\", plug in \"+a%2B1+\"
\n" ); document.write( "\"+F%28+a%2B1+%29+=+3%2A%28+a%2B1+%29+%2B+1+\"
\n" ); document.write( "\"+F%28+a%2B1+%29+=+3a+%2B+3+%2B+1+\"
\n" ); document.write( "\"+F%28+a%2B1+%29+=+3a+%2B+4+\"
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