21-n=11

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Solution for 21-n=11 equation: 


Simplifying
21 + -1n = 11

Solving
21 + -1n = 11

Solving for variable 'n'.

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

Add '-21' to each side of the equation.
21 + -21 + -1n = 11 + -21

Combine like terms: 21 + -21 = 0
0 + -1n = 11 + -21
-1n = 11 + -21

Combine like terms: 11 + -21 = -10
-1n = -10

Divide each side by '-1'.
n = 10

Simplifying
n = 10

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