SOLUTION: Hey! I really need an explanatory answer for this question: Evaluate the function given F(x) = 3x + 1 F(a + 1 ) =

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Question 875545: Hey! I really need an explanatory answer for this question:
Evaluate the function given F(x) = 3x + 1
F(a + 1 ) =
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Everywhere you see x, plug in +a%2B1+
+F%28+a%2B1+%29+=+3%2A%28+a%2B1+%29+%2B+1+
+F%28+a%2B1+%29+=+3a+%2B+3+%2B+1+
+F%28+a%2B1+%29+=+3a+%2B+4+