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3 votes
I'm having trouble with #8...

I'm having trouble with #8...-example-1
User Wismin
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1 Answer

5 votes
Okay, so because this is a parallelogram, angles B and D are congruent. So we just have to set them equal.
9x-5=10x-19
14=x
Done!
User Keiji
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7.5k points