408=-8(10n+9)

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Solution for 408=-8(10n+9) equation:


Simplifying
408 = -8(10n + 9)

Reorder the terms:
408 = -8(9 + 10n)
408 = (9 * -8 + 10n * -8)
408 = (-72 + -80n)

Solving
408 = -72 + -80n

Solving for variable 'n'.

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

Add '80n' to each side of the equation.
408 + 80n = -72 + -80n + 80n

Combine like terms: -80n + 80n = 0
408 + 80n = -72 + 0
408 + 80n = -72

Add '-408' to each side of the equation.
408 + -408 + 80n = -72 + -408

Combine like terms: 408 + -408 = 0
0 + 80n = -72 + -408
80n = -72 + -408

Combine like terms: -72 + -408 = -480
80n = -480

Divide each side by '80'.
n = -6

Simplifying
n = -6

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