document.write( "Question 90631: Given f(x) = 3x + 3, find f(a + 1).
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Algebra.Com's Answer #65833 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
f(a+1)=3(a+1)+3 ... f(a+1)=3a+3+3 ... f(a+1)=3a+6 \n" ); document.write( "
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