9n=6n+21

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Solution for 9n=6n+21 equation: 


Simplifying
9n = 6n + 21

Reorder the terms:
9n = 21 + 6n

Solving
9n = 21 + 6n

Solving for variable 'n'.

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

Add '-6n' to each side of the equation.
9n + -6n = 21 + 6n + -6n

Combine like terms: 9n + -6n = 3n
3n = 21 + 6n + -6n

Combine like terms: 6n + -6n = 0
3n = 21 + 0
3n = 21

Divide each side by '3'.
n = 7

Simplifying
n = 7

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