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Geometry 9 Online
OpenStudy (anonymous):

The length of each side of an equilateral triangle is represented by 3x-2. If the perimeter of the triangle is 42, what is the value of x?

OpenStudy (whpalmer4):

each side is 3x-2, and you've got 3 of them. the perimeter is the sum of the lengths of the sides, and equals 42. Can you write the equation that reflects this?

OpenStudy (anonymous):

\[3(3x-2)=42\] This is how to setup your equation. Just foil and solve for x

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