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12-01-2020
Mathematics

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In the diagram, m angel 8= 4x°,m angle 7 = 30°, and m angle 9 = (6x – 20). Find the value of x.

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SemondRaut SemondRaut

12-01-2020

Answer:

17

Step-by-step explanation:

4x+30+(6x-20)=180

4x+30+6x-20=180

10x+10=180

10x=170

x=170/10

so,x=17

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