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F(x) = -x - 1, solve for x when f (x) = 6

2 Answers

3 votes

Answer:

-x-1=6

-x=6+1

-x=7

x=-7

Explanation:

User SouthShoreAK
by
8.5k points
6 votes

We're given the function f(x) = -x - 1, and asked to solve for x when f(x) = 6.

So what I do is I substitute 6 for f(x):

6 = -x - 1

And now, I have an equation with one unknown.

-x - 1 = 6

-x = 6 + 1

-x = 7

x = -7

Answer :

x = -7

User Vibert
by
8.4k points

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