Respuesta :
Answer:
30.39
Step-by-step explanation:
ok, think of it like 21+9. That =s 30 right? so then add the .39 and you get 30.39.
Answer: x = 30.39
Step-by-step explanation:
Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below. Good luck!
Step 1: Simplify 21.39 + 9 to 30.39.
Basically, add 21 + 9 which equals 30, then add .39 to the end. You will then get 30.39.
30.39 = x
Step 2: Switch sides.
x = 30.39
~I hope I helped you! :)~