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Mathematics 17 Online
OpenStudy (anonymous):

plz help me (picture) http://i.imgur.com/GG95QpN.png plz give me the best answer.

OpenStudy (agent0smith):

The opposite sides are equal, so 3x - 9 = 15

OpenStudy (anonymous):

this is a parallelogram the properties of a parallelogram states opposite sides of the parallelogram are equal to each other therefore they will parallel also compare a parallelogram to a rectangle (this may help you )

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