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I need help. i don't understand this at all.

I need help. i don't understand this at all.-example-1
User Amar Gore
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2 Answers

2 votes
Yes that’s the answer
User Ankit Kapoor
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Answer:

Explanation:

If this is in terms of angles, 4x+6 must be equal to 90 since it is half of the angle produced by a line (180°) So solving for 4x+6=90, x=21

User Lauriys
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