10n+20=2n-4

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Solution for 10n+20=2n-4 equation:


Simplifying
10n + 20 = 2n + -4

Reorder the terms:
20 + 10n = 2n + -4

Reorder the terms:
20 + 10n = -4 + 2n

Solving
20 + 10n = -4 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
20 + 10n + -2n = -4 + 2n + -2n

Combine like terms: 10n + -2n = 8n
20 + 8n = -4 + 2n + -2n

Combine like terms: 2n + -2n = 0
20 + 8n = -4 + 0
20 + 8n = -4

Add '-20' to each side of the equation.
20 + -20 + 8n = -4 + -20

Combine like terms: 20 + -20 = 0
0 + 8n = -4 + -20
8n = -4 + -20

Combine like terms: -4 + -20 = -24
8n = -24

Divide each side by '8'.
n = -3

Simplifying
n = -3

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