Question

Find x if f(x) = 2x + 7 and f(x) = -1.

-4
-3
5

Answer 1

Answer: -4

Explanation:

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Answer 2

x = -4

Explanation:

To find x when f(x) = 2x + 7 and f(x) = -1, we must make these equations equal to eachother. This is because they are both equal to f(x). We can then use algebra to solve for x.

2x + 7 = -1

2x = -8

x = -4