5n+20+3n+40=180

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Solution for 5n+20+3n+40=180 equation:


Simplifying
5n + 20 + 3n + 40 = 180

Reorder the terms:
20 + 40 + 5n + 3n = 180

Combine like terms: 20 + 40 = 60
60 + 5n + 3n = 180

Combine like terms: 5n + 3n = 8n
60 + 8n = 180

Solving
60 + 8n = 180

Solving for variable 'n'.

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

Add '-60' to each side of the equation.
60 + -60 + 8n = 180 + -60

Combine like terms: 60 + -60 = 0
0 + 8n = 180 + -60
8n = 180 + -60

Combine like terms: 180 + -60 = 120
8n = 120

Divide each side by '8'.
n = 15

Simplifying
n = 15

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