-12=N-(-9)

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Solution for -12=N-(-9) equation:


Simplifying
-12 = N + -1(-9)

Multiply -1 * -9
-12 = N + 9

Reorder the terms:
-12 = 9 + N

Solving
-12 = 9 + 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 = 9 + N + -1N

Combine like terms: N + -1N = 0
-12 + -1N = 9 + 0
-12 + -1N = 9

Add '12' to each side of the equation.
-12 + 12 + -1N = 9 + 12

Combine like terms: -12 + 12 = 0
0 + -1N = 9 + 12
-1N = 9 + 12

Combine like terms: 9 + 12 = 21
-1N = 21

Divide each side by '-1'.
N = -21

Simplifying
N = -21

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