140n=(n-2)*180

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Solution for 140n=(n-2)*180 equation:


Simplifying
140n = (n + -2) * 180

Reorder the terms:
140n = (-2 + n) * 180

Reorder the terms for easier multiplication:
140n = 180(-2 + n)
140n = (-2 * 180 + n * 180)
140n = (-360 + 180n)

Solving
140n = -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.
140n + -180n = -360 + 180n + -180n

Combine like terms: 140n + -180n = -40n
-40n = -360 + 180n + -180n

Combine like terms: 180n + -180n = 0
-40n = -360 + 0
-40n = -360

Divide each side by '-40'.
n = 9

Simplifying
n = 9

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