21.39 + 9=x ok this seems easy but I'm stuck it is supposed to= 30.39 how do you get that answer PLS SHOW WORK WILL MARK AS BRAINLIEST

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! :)~

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