Respuesta :

Answer:

x = 80

Step-by-step explanation:

9+1=10 so x/8 must equal 10.

80/8 = 10 and subract by 9 = 1

1. X/-1 (divid X to 1)
2. -1• X/-1 = 1• -1
( multiple -1 by both sides)
3. X= -1

I hope this helps