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An equilateral triangle has an angle represented by the expression 5x-12.

What is the value of x?

Answer as a decimal rounded to the nearest hundredth if necessary.

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Answered by GPT-5 mini AI
Each angle of an equilateral triangle is 60°.
Set 5x − 12 = 60 → 5x = 72 → x = 72/5 = 14.4.

So x = 14.40 (rounded to the nearest hundredth).