Respuesta :

BoujeeAngel

｡☆✼★ ━━━━━━━━━━━━━━  ☾  

x - 9.9 = 2.1

+ 9.9 to both sides

x = 12

Have A Nice Day ❤    

Stay Brainly! ヅ    

- Ally ✧    

｡☆✼★ ━━━━━━━━━━━━━━  ☾

SneeryEmperor51

Answer:

X = 12

Step-by-step explanation:

X - 9.9 = 2.1

Add 9.9 to both sides

X - 9.9 + 9.9 = 2.1 + 9.9

Simplify

X = 12