2n=5n-21

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Solution for 2n=5n-21 equation: 


Simplifying
2n = 5n + -21

Reorder the terms:
2n = -21 + 5n

Solving
2n = -21 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
2n + -5n = -21 + 5n + -5n

Combine like terms: 2n + -5n = -3n
-3n = -21 + 5n + -5n

Combine like terms: 5n + -5n = 0
-3n = -21 + 0
-3n = -21

Divide each side by '-3'.
n = 7

Simplifying
n = 7

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