15=120+3n

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Solution for 15=120+3n equation:


Simplifying
15 = 120 + 3n

Solving
15 = 120 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
15 + -3n = 120 + 3n + -3n

Combine like terms: 3n + -3n = 0
15 + -3n = 120 + 0
15 + -3n = 120

Add '-15' to each side of the equation.
15 + -15 + -3n = 120 + -15

Combine like terms: 15 + -15 = 0
0 + -3n = 120 + -15
-3n = 120 + -15

Combine like terms: 120 + -15 = 105
-3n = 105

Divide each side by '-3'.
n = -35

Simplifying
n = -35

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