Respuesta :

KurdishPotato

Answer:

-1

Step-by-step explanation:

if x is equal to -1 then it will be like this

15-(-1)/-1+1 ➡ 16/0 a number divided by 0 is undefined.

mathstudent55

Answer:

x = -1

Step-by-step explanation:

I think you mean (15 - x)/(x + 1).

[tex] \dfrac{15 - x}{x + 1} [/tex]

If so, then the denominator cannot equal zero.

Set the denominator equal to zero, and find x.

That will be the x value that makes the fraction undefined.

x + 1 = 0

x = -1

Answer: x = -1

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