5n-4=21

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Solution for 5n-4=21 equation: 


Simplifying
5n + -4 = 21

Reorder the terms:
-4 + 5n = 21

Solving
-4 + 5n = 21

Solving for variable 'n'.

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

Add '4' to each side of the equation.
-4 + 4 + 5n = 21 + 4

Combine like terms: -4 + 4 = 0
0 + 5n = 21 + 4
5n = 21 + 4

Combine like terms: 21 + 4 = 25
5n = 25

Divide each side by '5'.
n = 5

Simplifying
n = 5

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