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igor_vitrenko [27]
3 years ago
14

Find the value of x. 30 POINTS! *URGENT*

Mathematics
1 answer:
balandron [24]3 years ago
6 0

Answer:

x = 7

Step-by-step explanation:

Value of the exterior angle is equal to the addition of the opposite interior angles in a triangle

19 + 20 = 6x - 3 \\ 39 = 6x - 3 \\ 39 + 3 = 6x \\4 2 = 6x \\  \frac{42}{6}  =  \frac{6x}{6} \\ x = 7

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