SOLUTION: if f(x) = 3x + 7 find f(3b) + 7 and simplify

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Question 627404: if f(x) = 3x + 7 find f(3b) + 7 and simplify
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
f%28x%29+=+3x+%2B+7

f%283b%29+=+3%283b%29+%2B+7

f%283b%29+=+9b+%2B+7

f%283b%29%2B7+=+9b+%2B+7%2B7

f%283b%29%2B7+=+9b+%2B+14

So the answer is f%283b%29%2B7+=+9b+%2B+14

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