20=-4+8(n+2)

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Solution for 20=-4+8(n+2) equation: 


Simplifying
20 = -4 + 8(n + 2)

Reorder the terms:
20 = -4 + 8(2 + n)
20 = -4 + (2 * 8 + n * 8)
20 = -4 + (16 + 8n)

Combine like terms: -4 + 16 = 12
20 = 12 + 8n

Solving
20 = 12 + 8n

Solving for variable 'n'.

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

Add '-8n' to each side of the equation.
20 + -8n = 12 + 8n + -8n

Combine like terms: 8n + -8n = 0
20 + -8n = 12 + 0
20 + -8n = 12

Add '-20' to each side of the equation.
20 + -20 + -8n = 12 + -20

Combine like terms: 20 + -20 = 0
0 + -8n = 12 + -20
-8n = 12 + -20

Combine like terms: 12 + -20 = -8
-8n = -8

Divide each side by '-8'.
n = 1

Simplifying
n = 1

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