Can somebody check this for me? I think id did it wrong.

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Can somebody check this for me? I think id did it wrong.
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2 Answers

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You’re correct

Step-by-step explanation: Another way to do it is 3x-6+2x+156=180. A way you can check your answer is add the angles up 12,12, and 156 and if you get 180 you’re correct.
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I think that right form what I know of.
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