Anyone know this?? Thanks

Webthusiast asked Oct 19, 2022

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Webthusiast asked Oct 19, 2022

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15 votes

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Answer:

x = 4

Explanation:

The figure is a rhombus when the sides are the same length.

21 -x = 2x +9

12 = 3x . . . . . . . . add x-9 to both sides

4 = x . . . . . . . . . . divide by 3

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