16-09-2021
Mathematics

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Three angles in a triangle are x, 2x + 20 and 7x - 10 . What is the value of x?

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16-09-2021

Step-by-step explanation:

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16-09-2021

Answer:

x= 17

Step-by-step explanation:

x+2x+20+7x-10 = 180

10x+10 = 180

10x = 180-10

x = 170/10

x = 17

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