9n+5-3(n-1)=15

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Solution for 9n+5-3(n-1)=15 equation: 


Simplifying
9n + 5 + -3(n + -1) = 15

Reorder the terms:
9n + 5 + -3(-1 + n) = 15
9n + 5 + (-1 * -3 + n * -3) = 15
9n + 5 + (3 + -3n) = 15

Reorder the terms:
5 + 3 + 9n + -3n = 15

Combine like terms: 5 + 3 = 8
8 + 9n + -3n = 15

Combine like terms: 9n + -3n = 6n
8 + 6n = 15

Solving
8 + 6n = 15

Solving for variable 'n'.

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

Add '-8' to each side of the equation.
8 + -8 + 6n = 15 + -8

Combine like terms: 8 + -8 = 0
0 + 6n = 15 + -8
6n = 15 + -8

Combine like terms: 15 + -8 = 7
6n = 7

Divide each side by '6'.
n = 1.166666667

Simplifying
n = 1.166666667

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