Respuesta :

Onoriodefelix

Answer:

x = 2 4/7

Step-by-step explanation:

8x - 9 = x + 9

Add 9 to both sides

8x - 9 + 9 = x + 9 + 9

8x = x + 18

Collect like terms

8x - x = 18

7x = 18

Divide both sides by 7

7x/7 = 18/7

x = 2 4/7