Respuesta :

Answer: nvm answer is 0. I was wrong my bad

Step-by-step explanation:

Answer:

All real numbers are solutions.

Step-by-step explanation:

3x + 15 = 3x + 15 ( you have to destrube 3*x is 3x and 3*5 is 15

now you isolate the x

3x + 15 = 3x + 15

    -15            -15

3x = 3x

-3x    -3x

0 = 0 All real numbers are solutions.