3n+18=39

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Solution for 3n+18=39 equation: 


Simplifying
3n + 18 = 39

Reorder the terms:
18 + 3n = 39

Solving
18 + 3n = 39

Solving for variable 'n'.

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

Add '-18' to each side of the equation.
18 + -18 + 3n = 39 + -18

Combine like terms: 18 + -18 = 0
0 + 3n = 39 + -18
3n = 39 + -18

Combine like terms: 39 + -18 = 21
3n = 21

Divide each side by '3'.
n = 7

Simplifying
n = 7

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