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An equilateral triangular tent has sides that measure x−10 units. Its perimeter is 63 units.

What is the value of x?
x=

2 Answers

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x- 10 if the perimeter is 63 it should be 53
User Kent Boogaart
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An equilateral triangle's sides are all equal. So you can set up the following equation and solve.

3(x-10)=63
x-10=21
x=31
User Guangyang Li
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