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posted by Jeremy on Wednesday, March 6, 2013 at 10:28pm.

write an expression in terms of x for the perimeter of an isosceles triangle with 2 sides of 6 cm and a third side of 2x cm.

P = 2 * 6 + 2 x = 2 ( 6 + x ) = 2 ( x + 6 )

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