(n+4)-(n-8)=n

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Solution for (n+4)-(n-8)=n equation:


Simplifying
(n + 4) + -1(n + -8) = n

Reorder the terms:
(4 + n) + -1(n + -8) = n

Remove parenthesis around (4 + n)
4 + n + -1(n + -8) = n

Reorder the terms:
4 + n + -1(-8 + n) = n
4 + n + (-8 * -1 + n * -1) = n
4 + n + (8 + -1n) = n

Reorder the terms:
4 + 8 + n + -1n = n

Combine like terms: 4 + 8 = 12
12 + n + -1n = n

Combine like terms: n + -1n = 0
12 + 0 = n
12 = n

Solving
12 = n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
12 + -1n = n + -1n

Combine like terms: n + -1n = 0
12 + -1n = 0

Add '-12' to each side of the equation.
12 + -12 + -1n = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -1n = 0 + -12
-1n = 0 + -12

Combine like terms: 0 + -12 = -12
-1n = -12

Divide each side by '-1'.
n = 12

Simplifying
n = 12

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