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AB=9x+7,BC=-3x+20,AC=39 find x

AB=9x+7,BC=-3x+20,AC=39 find x
asked 22.4k views
1 vote
AB=9x+7,BC=-3x+20,AC=39 find x

asked
User Jeff Richards
by
8.3k points

1 Answer

6 votes

Answer:

9x+7-3x+20+39° =180°

6x+66 =180°

6x=180-66°

x=19°

Explanation:

answered
User Julez
by
8.8k points
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