-n+9-2n-1=-13

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Solution for -n+9-2n-1=-13 equation: 


Simplifying
-1n + 9 + -2n + -1 = -13

Reorder the terms:
9 + -1 + -1n + -2n = -13

Combine like terms: 9 + -1 = 8
8 + -1n + -2n = -13

Combine like terms: -1n + -2n = -3n
8 + -3n = -13

Solving
8 + -3n = -13

Solving for variable 'n'.

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

Add '-8' to each side of the equation.
8 + -8 + -3n = -13 + -8

Combine like terms: 8 + -8 = 0
0 + -3n = -13 + -8
-3n = -13 + -8

Combine like terms: -13 + -8 = -21
-3n = -21

Divide each side by '-3'.
n = 7

Simplifying
n = 7

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