9n+9=10n-2

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Solution for 9n+9=10n-2 equation:


Simplifying
9n + 9 = 10n + -2

Reorder the terms:
9 + 9n = 10n + -2

Reorder the terms:
9 + 9n = -2 + 10n

Solving
9 + 9n = -2 + 10n

Solving for variable 'n'.

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

Add '-10n' to each side of the equation.
9 + 9n + -10n = -2 + 10n + -10n

Combine like terms: 9n + -10n = -1n
9 + -1n = -2 + 10n + -10n

Combine like terms: 10n + -10n = 0
9 + -1n = -2 + 0
9 + -1n = -2

Add '-9' to each side of the equation.
9 + -9 + -1n = -2 + -9

Combine like terms: 9 + -9 = 0
0 + -1n = -2 + -9
-1n = -2 + -9

Combine like terms: -2 + -9 = -11
-1n = -11

Divide each side by '-1'.
n = 11

Simplifying
n = 11

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