Question

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Answer 1

Which could be the first step in solving the equation represented by the model below?
Add 4 negative unit tiles to both sides.
Add 4 negative unit tiles to the left side, and add 6 negative unit tiles to the right side.
Add 4 positive unit tiles to both sides.
Add 6 negative unit tiles to the left side, and add 4 negative unit tiles to the right side

this is the equation to that!