80=-4(1+5n)+(1-5n)

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Solution for 80=-4(1+5n)+(1-5n) equation:


Simplifying
80 = -4(1 + 5n) + (1 + -5n)
80 = (1 * -4 + 5n * -4) + (1 + -5n)
80 = (-4 + -20n) + (1 + -5n)

Remove parenthesis around (1 + -5n)
80 = -4 + -20n + 1 + -5n

Reorder the terms:
80 = -4 + 1 + -20n + -5n

Combine like terms: -4 + 1 = -3
80 = -3 + -20n + -5n

Combine like terms: -20n + -5n = -25n
80 = -3 + -25n

Solving
80 = -3 + -25n

Solving for variable 'n'.

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

Add '25n' to each side of the equation.
80 + 25n = -3 + -25n + 25n

Combine like terms: -25n + 25n = 0
80 + 25n = -3 + 0
80 + 25n = -3

Add '-80' to each side of the equation.
80 + -80 + 25n = -3 + -80

Combine like terms: 80 + -80 = 0
0 + 25n = -3 + -80
25n = -3 + -80

Combine like terms: -3 + -80 = -83
25n = -83

Divide each side by '25'.
n = -3.32

Simplifying
n = -3.32

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