2n-n=21-15

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Solution for 2n-n=21-15 equation: 


Simplifying
2n + -1n = 21 + -15

Combine like terms: 2n + -1n = 1n
1n = 21 + -15

Combine like terms: 21 + -15 = 6
1n = 6

Solving
1n = 6

Solving for variable 'n'.

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

Divide each side by '1'.
n = 6

Simplifying
n = 6

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