Geometry-7th grade

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The diagonals of a rhombus ABCD intersect at point E. If the sides of BC is equal to x + 9 and side DC is equal to 5x-2, find x.

How would I set this up-Please give me some direction

  • Geometry-7th grade -

    All sides of a Rhombus are congruent. Therefore, AB = BC = CD = AD

    BC = x + 9
    DC = 5x - 2
    BC = DC
    x + 9 = 5x - 2
    4x = 11
    x = ?

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