84=4(1-2n)-2n

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Solution for 84=4(1-2n)-2n equation:


Simplifying
84 = 4(1 + -2n) + -2n
84 = (1 * 4 + -2n * 4) + -2n
84 = (4 + -8n) + -2n

Combine like terms: -8n + -2n = -10n
84 = 4 + -10n

Solving
84 = 4 + -10n

Solving for variable 'n'.

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

Add '10n' to each side of the equation.
84 + 10n = 4 + -10n + 10n

Combine like terms: -10n + 10n = 0
84 + 10n = 4 + 0
84 + 10n = 4

Add '-84' to each side of the equation.
84 + -84 + 10n = 4 + -84

Combine like terms: 84 + -84 = 0
0 + 10n = 4 + -84
10n = 4 + -84

Combine like terms: 4 + -84 = -80
10n = -80

Divide each side by '10'.
n = -8

Simplifying
n = -8

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