156=-3(7n-3)

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Solution for 156=-3(7n-3) equation: 


Simplifying
156 = -3(7n + -3)

Reorder the terms:
156 = -3(-3 + 7n)
156 = (-3 * -3 + 7n * -3)
156 = (9 + -21n)

Solving
156 = 9 + -21n

Solving for variable 'n'.

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

Add '21n' to each side of the equation.
156 + 21n = 9 + -21n + 21n

Combine like terms: -21n + 21n = 0
156 + 21n = 9 + 0
156 + 21n = 9

Add '-156' to each side of the equation.
156 + -156 + 21n = 9 + -156

Combine like terms: 156 + -156 = 0
0 + 21n = 9 + -156
21n = 9 + -156

Combine like terms: 9 + -156 = -147
21n = -147

Divide each side by '21'.
n = -7

Simplifying
n = -7

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