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Delvig [45]
3 years ago
7

Help please its math i really need help

Mathematics
1 answer:
Norma-Jean [14]3 years ago
4 0

Answer:

m<D = 26

Step-by-step explanation:

Exterior angles thm:

83 + 6x - 4 = 21x + 4

6x + 79 = 21x + 4

6x - 21x = 4 - 79

-15x = -75

x = 5

m<D:

6x - 4

6(5) - 4

30 - 4

26

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