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16-03-2020
Mathematics

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What is the value of X?

What is the value of X class=

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gambardellapaige gambardellapaige

16-03-2020

Answer:

x = 21 degrees

Step-by-step explanation:

The angles in a triangle add up to 180 degrees.

x - 4 + 3x + 100 = 180

x - 4 + 3x = 80

4x - 4 = 80

4x = 84

x = 21

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