2n=8n+21

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Solution for 2n=8n+21 equation: 


Simplifying
2n = 8n + 21

Reorder the terms:
2n = 21 + 8n

Solving
2n = 21 + 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.
2n + -8n = 21 + 8n + -8n

Combine like terms: 2n + -8n = -6n
-6n = 21 + 8n + -8n

Combine like terms: 8n + -8n = 0
-6n = 21 + 0
-6n = 21

Divide each side by '-6'.
n = -3.5

Simplifying
n = -3.5

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