Respuesta :

Answer:

C

Step-by-step explanation:

The best way to find x is to plug in all the answer choices and see if they equal 5

lets start with A

18+13=5

31=5 which is incorrect

Let do B

-18+13=5

-5=5 which is incorrect

Lets do C

-8+13=5

5=5 which is correct!

Lets do D

8+13=5

21=5 which is incorrect

pls mark me brainliest

Answer:

The answer is (C) -8

Step-by-step explanation

x = -8

-8 + 13 = 5

It is basically like subtraction..

You subtract the 13 from the 8 even though its backwards.

-8 + 13 = 5