9-5n+1=21

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Solution for 9-5n+1=21 equation: 


Simplifying
9 + -5n + 1 = 21

Reorder the terms:
9 + 1 + -5n = 21

Combine like terms: 9 + 1 = 10
10 + -5n = 21

Solving
10 + -5n = 21

Solving for variable 'n'.

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

Add '-10' to each side of the equation.
10 + -10 + -5n = 21 + -10

Combine like terms: 10 + -10 = 0
0 + -5n = 21 + -10
-5n = 21 + -10

Combine like terms: 21 + -10 = 11
-5n = 11

Divide each side by '-5'.
n = -2.2

Simplifying
n = -2.2

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