5(9+n)=80

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Solution for 5(9+n)=80 equation: 


Simplifying
5(9 + n) = 80
(9 * 5 + n * 5) = 80
(45 + 5n) = 80

Solving
45 + 5n = 80

Solving for variable 'n'.

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

Add '-45' to each side of the equation.
45 + -45 + 5n = 80 + -45

Combine like terms: 45 + -45 = 0
0 + 5n = 80 + -45
5n = 80 + -45

Combine like terms: 80 + -45 = 35
5n = 35

Divide each side by '5'.
n = 7

Simplifying
n = 7

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