-6(N)+21=12(N)-15

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Solution for -6(N)+21=12(N)-15 equation: 


Simplifying
-6(N) + 21 = 12(N) + -15

Reorder the terms:
21 + -6N = 12(N) + -15

Reorder the terms:
21 + -6N = -15 + 12N

Solving
21 + -6N = -15 + 12N

Solving for variable 'N'.

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

Add '-12N' to each side of the equation.
21 + -6N + -12N = -15 + 12N + -12N

Combine like terms: -6N + -12N = -18N
21 + -18N = -15 + 12N + -12N

Combine like terms: 12N + -12N = 0
21 + -18N = -15 + 0
21 + -18N = -15

Add '-21' to each side of the equation.
21 + -21 + -18N = -15 + -21

Combine like terms: 21 + -21 = 0
0 + -18N = -15 + -21
-18N = -15 + -21

Combine like terms: -15 + -21 = -36
-18N = -36

Divide each side by '-18'.
N = 2

Simplifying
N = 2

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