What is the solution of the equation?

Question

anonymous · Answer

attachment

anonymous · Answer

Possible answers:
-6
4
14
-8

hba · Answer

$$\huge\ x^{-1}=\frac{ 1 }{ x }$$

anonymous · Answer

???

hba · Answer

$$\huge\ (x+10)^{-9}=-7$$

So can you do something to make this positive .

Another example,

$$\huge\ (x+2)^{-2}=\frac{ 1 }{ (x+2)^2 }$$

anonymous · Answer

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anonymous · Answer

$$\sqrt{x+10} -9 = -7$$
take the "-9" to the other side
$$\sqrt{x+10}  = 2$$
square both sides
x+10 = 4
 take the "10" to the next side
x=-6