5(3+n)=90

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Solution for 5(3+n)=90 equation: 


Simplifying
5(3 + n) = 90
(3 * 5 + n * 5) = 90
(15 + 5n) = 90

Solving
15 + 5n = 90

Solving for variable 'n'.

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

Add '-15' to each side of the equation.
15 + -15 + 5n = 90 + -15

Combine like terms: 15 + -15 = 0
0 + 5n = 90 + -15
5n = 90 + -15

Combine like terms: 90 + -15 = 75
5n = 75

Divide each side by '5'.
n = 15

Simplifying
n = 15

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