121-5n=5n-9

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Solution for 121-5n=5n-9 equation:


Simplifying
121 + -5n = 5n + -9

Reorder the terms:
121 + -5n = -9 + 5n

Solving
121 + -5n = -9 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
121 + -5n + -5n = -9 + 5n + -5n

Combine like terms: -5n + -5n = -10n
121 + -10n = -9 + 5n + -5n

Combine like terms: 5n + -5n = 0
121 + -10n = -9 + 0
121 + -10n = -9

Add '-121' to each side of the equation.
121 + -121 + -10n = -9 + -121

Combine like terms: 121 + -121 = 0
0 + -10n = -9 + -121
-10n = -9 + -121

Combine like terms: -9 + -121 = -130
-10n = -130

Divide each side by '-10'.
n = 13

Simplifying
n = 13

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