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Given f(x) = 3x + 1, solve for x when f(x) = 7.
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4 votes
Given f(x) = 3x + 1, solve for x when f(x) = 7.

User Zeffry Reynando
by
6.1k points

2 Answers

3 votes

Answer:

f(7) = 22

Explanation:

1. f(x) = 3x + 1

2. f(7) = 3(7) + 1

3. f(7) = 21 + 1

User Aleksandr Borisov
by
5.6k points
5 votes

Answer:

f(7) = 22 or x =2

Explanation:

  1. f(x) = 3x + 1
  2. f(7) = 3(7) + 1
  3. f(7) = 21 + 1
  4. f(7) = 22

Or if the equation meant it like this:

  1. f(x) = 3x + 1
  2. 7 = 3x + 1
  3. 6 = 3x
  4. 2 = x
User Trinadh Thatakula
by
5.9k points
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