-6n+21=-12n-15

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Solution for -6n+21=-12n-15 equation:


Simplifying
-6n + 21 = -12n + -15

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

Combine like terms: -12n + 12n = 0
21 + 6n = -15 + 0
21 + 6n = -15

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

Combine like terms: 21 + -21 = 0
0 + 6n = -15 + -21
6n = -15 + -21

Combine like terms: -15 + -21 = -36
6n = -36

Divide each side by '6'.
n = -6

Simplifying
n = -6

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