-6n+21=12n-21

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


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

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

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

Solving
21 + -6n = -21 + 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 = -21 + 12n + -12n

Combine like terms: -6n + -12n = -18n
21 + -18n = -21 + 12n + -12n

Combine like terms: 12n + -12n = 0
21 + -18n = -21 + 0
21 + -18n = -21

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

Combine like terms: 21 + -21 = 0
0 + -18n = -21 + -21
-18n = -21 + -21

Combine like terms: -21 + -21 = -42
-18n = -42

Divide each side by '-18'.
n = 2.333333333

Simplifying
n = 2.333333333

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