hn-4=21

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Solution for hn-4=21 equation: 


Simplifying
hn + -4 = 21

Reorder the terms:
-4 + hn = 21

Solving
-4 + hn = 21

Solving for variable 'h'.

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

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

Combine like terms: -4 + 4 = 0
0 + hn = 21 + 4
hn = 21 + 4

Combine like terms: 21 + 4 = 25
hn = 25

Divide each side by 'n'.
h = 25n-1

Simplifying
h = 25n-1

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