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Blababa [14]
3 years ago
8

Triangle Theorems, Help!!!

Mathematics
1 answer:
dybincka [34]3 years ago
6 0

Answer:

x = 8

Step-by-step explanation:

(6x + 7)° + 45° = (13x - 4)° => exterior angle theorem of a triangle

6x + 7 + 45 = 13x - 4

6x + 52 = 13x - 4

Collect like terms

6x - 13x = -52 - 4

-7x = -56

Divide both sides by -7

x = -56/-7

x = 8

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