3(n+-2)=15

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


Simplifying
3(n + -2) = 15

Reorder the terms:
3(-2 + n) = 15
(-2 * 3 + n * 3) = 15
(-6 + 3n) = 15

Solving
-6 + 3n = 15

Solving for variable 'n'.

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

Add '6' to each side of the equation.
-6 + 6 + 3n = 15 + 6

Combine like terms: -6 + 6 = 0
0 + 3n = 15 + 6
3n = 15 + 6

Combine like terms: 15 + 6 = 21
3n = 21

Divide each side by '3'.
n = 7

Simplifying
n = 7

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