2n+-1+7=12

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Solution for 2n+-1+7=12 equation: 


Simplifying
2n + -1 + 7 = 12

Reorder the terms:
-1 + 7 + 2n = 12

Combine like terms: -1 + 7 = 6
6 + 2n = 12

Solving
6 + 2n = 12

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 + 2n = 12 + -6

Combine like terms: 6 + -6 = 0
0 + 2n = 12 + -6
2n = 12 + -6

Combine like terms: 12 + -6 = 6
2n = 6

Divide each side by '2'.
n = 3

Simplifying
n = 3

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