31+9n=11-n

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Solution for 31+9n=11-n equation:


Simplifying
31 + 9n = 11 + -1n

Solving
31 + 9n = 11 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
31 + 9n + n = 11 + -1n + n

Combine like terms: 9n + n = 10n
31 + 10n = 11 + -1n + n

Combine like terms: -1n + n = 0
31 + 10n = 11 + 0
31 + 10n = 11

Add '-31' to each side of the equation.
31 + -31 + 10n = 11 + -31

Combine like terms: 31 + -31 = 0
0 + 10n = 11 + -31
10n = 11 + -31

Combine like terms: 11 + -31 = -20
10n = -20

Divide each side by '10'.
n = -2

Simplifying
n = -2

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