4n=21-3n

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Solution for 4n=21-3n equation: 


Simplifying
4n = 21 + -3n

Solving
4n = 21 + -3n

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
4n + 3n = 21 + -3n + 3n

Combine like terms: 4n + 3n = 7n
7n = 21 + -3n + 3n

Combine like terms: -3n + 3n = 0
7n = 21 + 0
7n = 21

Divide each side by '7'.
n = 3

Simplifying
n = 3

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