When 1⁄ 7 of the number is subtracted from the number itself, it gives the same value as the sum of all the angles of a triangle. What is the number?

Question

Accepted Answer

Let number be the x. According to the equation , x - x⁄7 = 180 ⇒ 6x⁄7 = 180 ∴ x = 210

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