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Someone help and solve for X

Someone help and solve for X-example-1
User Medena
by
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1 Answer

3 votes

Explanation:

since all angles add up to 180:

(8x-1)+(3x+4)+(3x+9)=180

add like terms:

14x+12=180

x=12

Hope that helps :)

User Robiseb
by
3.9k points