6n-6=-3n+21

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Solution for 6n-6=-3n+21 equation:


Simplifying
6n + -6 = -3n + 21

Reorder the terms:
-6 + 6n = -3n + 21

Reorder the terms:
-6 + 6n = 21 + -3n

Solving
-6 + 6n = 21 + -3n

Solving for variable 'n'.

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

Add '3n' to each side of the equation.
-6 + 6n + 3n = 21 + -3n + 3n

Combine like terms: 6n + 3n = 9n
-6 + 9n = 21 + -3n + 3n

Combine like terms: -3n + 3n = 0
-6 + 9n = 21 + 0
-6 + 9n = 21

Add '6' to each side of the equation.
-6 + 6 + 9n = 21 + 6

Combine like terms: -6 + 6 = 0
0 + 9n = 21 + 6
9n = 21 + 6

Combine like terms: 21 + 6 = 27
9n = 27

Divide each side by '9'.
n = 3

Simplifying
n = 3

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