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Elena-2011 [213]
3 years ago
5

If angle A B C is congruent to angle C B D, find x.

Mathematics
1 answer:
Svetlanka [38]3 years ago
6 0
4 x + 30 = 5x + 20
-5x           -5x

-x + 30 = 20
     -30     -30

- x = -10

x = 10
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