720=(n-2)180

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Solution for 720=(n-2)180 equation:


Simplifying
720 = (n + -2) * 180

Reorder the terms:
720 = (-2 + n) * 180

Reorder the terms for easier multiplication:
720 = 180(-2 + n)
720 = (-2 * 180 + n * 180)
720 = (-360 + 180n)

Solving
720 = -360 + 180n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-180n' to each side of the equation.
720 + -180n = -360 + 180n + -180n

Combine like terms: 180n + -180n = 0
720 + -180n = -360 + 0
720 + -180n = -360

Add '-720' to each side of the equation.
720 + -720 + -180n = -360 + -720

Combine like terms: 720 + -720 = 0
0 + -180n = -360 + -720
-180n = -360 + -720

Combine like terms: -360 + -720 = -1080
-180n = -1080

Divide each side by '-180'.
n = 6

Simplifying
n = 6

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