5n+8+4n=80

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Solution for 5n+8+4n=80 equation: 


Simplifying
5n + 8 + 4n = 80

Reorder the terms:
8 + 5n + 4n = 80

Combine like terms: 5n + 4n = 9n
8 + 9n = 80

Solving
8 + 9n = 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 + 9n = 80 + -8

Combine like terms: 8 + -8 = 0
0 + 9n = 80 + -8
9n = 80 + -8

Combine like terms: 80 + -8 = 72
9n = 72

Divide each side by '9'.
n = 8

Simplifying
n = 8

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