(N+2)2-(n-2)2=8

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Solution for (N+2)2-(n-2)2=8 equation:


Simplifying
(N + 2) * 2 + -1(n + -2) * 2 = 8

Reorder the terms:
(2 + N) * 2 + -1(n + -2) * 2 = 8

Reorder the terms for easier multiplication:
2(2 + N) + -1(n + -2) * 2 = 8
(2 * 2 + N * 2) + -1(n + -2) * 2 = 8
(4 + 2N) + -1(n + -2) * 2 = 8

Reorder the terms:
4 + 2N + -1(-2 + n) * 2 = 8

Reorder the terms for easier multiplication:
4 + 2N + -1 * 2(-2 + n) = 8

Multiply -1 * 2
4 + 2N + -2(-2 + n) = 8
4 + 2N + (-2 * -2 + n * -2) = 8
4 + 2N + (4 + -2n) = 8

Reorder the terms:
4 + 4 + 2N + -2n = 8

Combine like terms: 4 + 4 = 8
8 + 2N + -2n = 8

Add '-8' to each side of the equation.
8 + 2N + -8 + -2n = 8 + -8

Reorder the terms:
8 + -8 + 2N + -2n = 8 + -8

Combine like terms: 8 + -8 = 0
0 + 2N + -2n = 8 + -8
2N + -2n = 8 + -8

Combine like terms: 8 + -8 = 0
2N + -2n = 0

Solving
2N + -2n = 0

Solving for variable 'N'.

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

Add '2n' to each side of the equation.
2N + -2n + 2n = 0 + 2n

Combine like terms: -2n + 2n = 0
2N + 0 = 0 + 2n
2N = 0 + 2n
Remove the zero:
2N = 2n

Divide each side by '2'.
N = n

Simplifying
N = n

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