3(2n+1)=3n-9

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Solution for 3(2n+1)=3n-9 equation:


Simplifying
3(2n + 1) = 3n + -9

Reorder the terms:
3(1 + 2n) = 3n + -9
(1 * 3 + 2n * 3) = 3n + -9
(3 + 6n) = 3n + -9

Reorder the terms:
3 + 6n = -9 + 3n

Solving
3 + 6n = -9 + 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.
3 + 6n + -3n = -9 + 3n + -3n

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

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

Add '-3' to each side of the equation.
3 + -3 + 3n = -9 + -3

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

Combine like terms: -9 + -3 = -12
3n = -12

Divide each side by '3'.
n = -4

Simplifying
n = -4

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