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svetoff [14.1K]
3 years ago
10

Solve for x. Show all work

Mathematics
1 answer:
Rudiy273 years ago
3 0

9514 1404 393

Answer:

  x = 12

Step-by-step explanation:

Triangle DGH is isosceles with base angles at D and G. The external angle 134° at H is the sum of those two base angles, so we have ...

  2(5x+7) = 134

  5x +7 = 67 . . . . . divide by 2

  5x = 60 . . . . . . . subtract 7

  x = 12 . . . . . . . . divide by 5

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