-21=-n-19

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Solution for -21=-n-19 equation:


Simplifying
-21 = -1n + -19

Reorder the terms:
-21 = -19 + -1n

Solving
-21 = -19 + -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.
-21 + n = -19 + -1n + n

Combine like terms: -1n + n = 0
-21 + n = -19 + 0
-21 + n = -19

Add '21' to each side of the equation.
-21 + 21 + n = -19 + 21

Combine like terms: -21 + 21 = 0
0 + n = -19 + 21
n = -19 + 21

Combine like terms: -19 + 21 = 2
n = 2

Simplifying
n = 2

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