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Slav-nsk [51]
3 years ago
14

(Angle/triangle problem 25points) What is the value of X?

Mathematics
1 answer:
Serhud [2]3 years ago
3 0

Answer:

x = 5

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles in the triangle and equate to 180, that is

10x - 4 + 8x + 3 + 91 = 180

18x + 90 = 180 ( subtract 90 from both sides )

18x = 90 ( divide both sides by 18 )

x = 5


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