3n+6n=-3(n-2)+3(3n+7)

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Solution for 3n+6n=-3(n-2)+3(3n+7) equation:


Simplifying
3n + 6n = -3(n + -2) + 3(3n + 7)

Combine like terms: 3n + 6n = 9n
9n = -3(n + -2) + 3(3n + 7)

Reorder the terms:
9n = -3(-2 + n) + 3(3n + 7)
9n = (-2 * -3 + n * -3) + 3(3n + 7)
9n = (6 + -3n) + 3(3n + 7)

Reorder the terms:
9n = 6 + -3n + 3(7 + 3n)
9n = 6 + -3n + (7 * 3 + 3n * 3)
9n = 6 + -3n + (21 + 9n)

Reorder the terms:
9n = 6 + 21 + -3n + 9n

Combine like terms: 6 + 21 = 27
9n = 27 + -3n + 9n

Combine like terms: -3n + 9n = 6n
9n = 27 + 6n

Solving
9n = 27 + 6n

Solving for variable 'n'.

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

Add '-6n' to each side of the equation.
9n + -6n = 27 + 6n + -6n

Combine like terms: 9n + -6n = 3n
3n = 27 + 6n + -6n

Combine like terms: 6n + -6n = 0
3n = 27 + 0
3n = 27

Divide each side by '3'.
n = 9

Simplifying
n = 9

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