2n+n-10+n+30=180

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Solution for 2n+n-10+n+30=180 equation:


Simplifying
2n + n + -10 + n + 30 = 180

Reorder the terms:
-10 + 30 + 2n + n + n = 180

Combine like terms: -10 + 30 = 20
20 + 2n + n + n = 180

Combine like terms: 2n + n = 3n
20 + 3n + n = 180

Combine like terms: 3n + n = 4n
20 + 4n = 180

Solving
20 + 4n = 180

Solving for variable 'n'.

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

Add '-20' to each side of the equation.
20 + -20 + 4n = 180 + -20

Combine like terms: 20 + -20 = 0
0 + 4n = 180 + -20
4n = 180 + -20

Combine like terms: 180 + -20 = 160
4n = 160

Divide each side by '4'.
n = 40

Simplifying
n = 40

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