❍ Hello there! ❍
The number that belongs in the green box is 2.
Remember the Golden Rule of Algebra:
Whatever you do to one side, you must do the same to the other side.
We subtracted 2 from one side, so we have to subtract 2 from the other side.
Therefore, the number that belongs in the green box is 2.
Hope this helps!
~Just a cheerful teen
#CarryOnLearning
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