7=12-N

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Solution for 7=12-N equation: 


Simplifying
7 = 12 + -1N

Solving
7 = 12 + -1N

Solving for variable 'N'.

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

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

Combine like terms: -1N + N = 0
7 + N = 12 + 0
7 + N = 12

Add '-7' to each side of the equation.
7 + -7 + N = 12 + -7

Combine like terms: 7 + -7 = 0
0 + N = 12 + -7
N = 12 + -7

Combine like terms: 12 + -7 = 5
N = 5

Simplifying
N = 5

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