Respuesta :

Answer:

C

Step-by-step explanation:

The answer for A:

-10 = 10 (no solution) -10 does not equal 10

The answer for B:

x = 1

The answer for C:

-10 = - 10 (if x = any number, then -10 would still equal -10, so, it would be infinitely many solutions

The answer for D:

x = 0

So, the answer would be C as it's the only one with infinitely many solutions. Hope this helps.