20-n=8(-n-8)-5n

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Solution for 20-n=8(-n-8)-5n equation:


Simplifying
20 + -1n = 8(-1n + -8) + -5n

Reorder the terms:
20 + -1n = 8(-8 + -1n) + -5n
20 + -1n = (-8 * 8 + -1n * 8) + -5n
20 + -1n = (-64 + -8n) + -5n

Combine like terms: -8n + -5n = -13n
20 + -1n = -64 + -13n

Solving
20 + -1n = -64 + -13n

Solving for variable 'n'.

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

Add '13n' to each side of the equation.
20 + -1n + 13n = -64 + -13n + 13n

Combine like terms: -1n + 13n = 12n
20 + 12n = -64 + -13n + 13n

Combine like terms: -13n + 13n = 0
20 + 12n = -64 + 0
20 + 12n = -64

Add '-20' to each side of the equation.
20 + -20 + 12n = -64 + -20

Combine like terms: 20 + -20 = 0
0 + 12n = -64 + -20
12n = -64 + -20

Combine like terms: -64 + -20 = -84
12n = -84

Divide each side by '12'.
n = -7

Simplifying
n = -7

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