Respuesta :
Answer: If you are trying to solve for x then I keep getting -10 but I'm gonna try again.
Answer:
Its answer is - 10
I think you did it another way. There is the process
Step-by-step explanation:
15x = 6x - 90
or, 15x - 6x = - 90
or, 9x = - 90
or, x = - 90 / 9
or, x = - 10