3n-15=75

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Solution for 3n-15=75 equation: 


Simplifying
3n + -15 = 75

Reorder the terms:
-15 + 3n = 75

Solving
-15 + 3n = 75

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 + 3n = 75 + 15

Combine like terms: -15 + 15 = 0
0 + 3n = 75 + 15
3n = 75 + 15

Combine like terms: 75 + 15 = 90
3n = 90

Divide each side by '3'.
n = 30

Simplifying
n = 30

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