13=n-8

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Solution for 13=n-8 equation: 


Simplifying
13 = n + -8

Reorder the terms:
13 = -8 + n

Solving
13 = -8 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
13 + -1n = -8 + n + -1n

Combine like terms: n + -1n = 0
13 + -1n = -8 + 0
13 + -1n = -8

Add '-13' to each side of the equation.
13 + -13 + -1n = -8 + -13

Combine like terms: 13 + -13 = 0
0 + -1n = -8 + -13
-1n = -8 + -13

Combine like terms: -8 + -13 = -21
-1n = -21

Divide each side by '-1'.
n = 21

Simplifying
n = 21

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