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dmitriy555 [2]
3 years ago
6

HELP ME PLS!!! Find the value of X.

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0

Answer:

x = 4

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to an exterior angle that is supplementary to the third interior angles

46 + (-1 + 8x) = 18x + 5

46 - 1 + 8x = 18x + 5

45 + 8x = 18x + 5 export like terms to the same side

45 - 5 = 18x - 8x

40 = 10x divide both sides by 10

x = 4

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