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What is the measure of AC? Enter your answer in the box. Enter only the numerical value.

What is the measure of AC? Enter your answer in the box. Enter only the numerical value.
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What is the measure of AC?
Enter your answer in the box. Enter only the numerical value.

What is the measure of AC? Enter your answer in the box. Enter only the numerical-example-1
User Ziyuan
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Check the picture below.


3x-1.5=\cfrac{3x+9}{2}\implies 6x-3=3x+9\implies 3x-3=9 \\\\\\ 3x=12\implies x=\cfrac{12}{3}\implies x=4\hspace{10em}\stackrel{ 3(4)+9 }{\boxed{\widehat{AC}=21^o}}

What is the measure of AC? Enter your answer in the box. Enter only the numerical-example-1
User DoubleYou
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