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borishaifa [10]
3 years ago
9

Please help! For what value of x must ABCD be a​ parallelogram? x=?

Mathematics
1 answer:
Vlad1618 [11]3 years ago
4 0

Answer:

x=3

Step-by-step explanation:

For a shape to be a parallelogram, the angles that are across from one another have to be equal.

We can now find x by making both equations equal to each other and solving.

11x+1=13x-5

Solve.

11x+1=13x-5\\6=2x\\x=3

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