2n+8+4n=80

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Solution for 2n+8+4n=80 equation: 


Simplifying
2n + 8 + 4n = 80

Reorder the terms:
8 + 2n + 4n = 80

Combine like terms: 2n + 4n = 6n
8 + 6n = 80

Solving
8 + 6n = 80

Solving for variable 'n'.

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

Add '-8' to each side of the equation.
8 + -8 + 6n = 80 + -8

Combine like terms: 8 + -8 = 0
0 + 6n = 80 + -8
6n = 80 + -8

Combine like terms: 80 + -8 = 72
6n = 72

Divide each side by '6'.
n = 12

Simplifying
n = 12

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