15=-3(n-4)

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Solution for 15=-3(n-4) equation:


Simplifying
15 = -3(n + -4)

Reorder the terms:
15 = -3(-4 + n)
15 = (-4 * -3 + n * -3)
15 = (12 + -3n)

Solving
15 = 12 + -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.
15 + 3n = 12 + -3n + 3n

Combine like terms: -3n + 3n = 0
15 + 3n = 12 + 0
15 + 3n = 12

Add '-15' to each side of the equation.
15 + -15 + 3n = 12 + -15

Combine like terms: 15 + -15 = 0
0 + 3n = 12 + -15
3n = 12 + -15

Combine like terms: 12 + -15 = -3
3n = -3

Divide each side by '3'.
n = -1

Simplifying
n = -1

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