9n-3(2n-n)=15

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Solution for 9n-3(2n-n)=15 equation: 


Simplifying
9n + -3(2n + -1n) = 15

Combine like terms: 2n + -1n = 1n
9n + -3(1n) = 15

Remove parenthesis around (1n)
9n + -3 * 1n = 15

Multiply -3 * 1
9n + -3n = 15

Combine like terms: 9n + -3n = 6n
6n = 15

Solving
6n = 15

Solving for variable 'n'.

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

Divide each side by '6'.
n = 2.5

Simplifying
n = 2.5

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