garyhandsford9owi0st garyhandsford9owi0st

14-02-2019
Mathematics

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I need help with this

I need help with this class=

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jimrgrant1 jimrgrant1

14-02-2019

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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