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Ilia_Sergeevich [38]
3 years ago
14

I need help with this

Mathematics
1 answer:
madreJ [45]3 years ago
7 0

Answer:

x = 14

Step-by-step explanation:

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

4x + 14 + 2x + 15 + 5x - 3 = 180

11x + 26 = 180 ( subtract 26 from both sides )

11x = 154 ( divide both sides by 11 )

x = 14

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