3n+18=42

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Solution for 3n+18=42 equation: 


Simplifying
3n + 18 = 42

Reorder the terms:
18 + 3n = 42

Solving
18 + 3n = 42

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 = 42 + -18

Combine like terms: 18 + -18 = 0
0 + 3n = 42 + -18
3n = 42 + -18

Combine like terms: 42 + -18 = 24
3n = 24

Divide each side by '3'.
n = 8

Simplifying
n = 8

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