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Verified Answer :

Sorbji

2x+20 ≤ 119-9x   Move a constant (without a variable) to the opposite side
     -20     -20
___________
2x≤99-9x            Move a variable to the opposite side of the constants
+9x     +9x
----------------
11x≤99                  Divide to isolate the variable
----  ----
11      11

x≤9

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