Question

F(x)=−x−4, solve for x when f(x)=6

Answer 1

`\displaystyle -10 = x`

Explanation:

6 = −x - 4

+ 4 + 4

_________

`\displaystyle 10 = -x \\ \\ -10 = x`

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Answer 2

-10

Explanation:

f(x)=-x-4

f(x)=6

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-x-4=6

-x=6+4

-x=10

x=-10