n+n-2=28

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Solution for n+n-2=28 equation: 


Simplifying
n + n + -2 = 28

Reorder the terms:
-2 + n + n = 28

Combine like terms: n + n = 2n
-2 + 2n = 28

Solving
-2 + 2n = 28

Solving for variable 'n'.

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

Add '2' to each side of the equation.
-2 + 2 + 2n = 28 + 2

Combine like terms: -2 + 2 = 0
0 + 2n = 28 + 2
2n = 28 + 2

Combine like terms: 28 + 2 = 30
2n = 30

Divide each side by '2'.
n = 15

Simplifying
n = 15

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