Answer <3
Hello there! I'm here to help with your question!
I believe the answer is x= 6
The explanation:
9 =
x
9 =

9 =

2 · 9 = ·

2 · 9 = 2 ·

2 · 9 = 3x
x = 6
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Please forgive me.
Bye! - Lilo <3