5n+10(20-n)=165

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Solution for 5n+10(20-n)=165 equation:


Simplifying
5n + 10(20 + -1n) = 165
5n + (20 * 10 + -1n * 10) = 165
5n + (200 + -10n) = 165

Reorder the terms:
200 + 5n + -10n = 165

Combine like terms: 5n + -10n = -5n
200 + -5n = 165

Solving
200 + -5n = 165

Solving for variable 'n'.

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

Add '-200' to each side of the equation.
200 + -200 + -5n = 165 + -200

Combine like terms: 200 + -200 = 0
0 + -5n = 165 + -200
-5n = 165 + -200

Combine like terms: 165 + -200 = -35
-5n = -35

Divide each side by '-5'.
n = 7

Simplifying
n = 7

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