3(n+4)=42

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Solution for 3(n+4)=42 equation: 


Simplifying
3(n + 4) = 42

Reorder the terms:
3(4 + n) = 42
(4 * 3 + n * 3) = 42
(12 + 3n) = 42

Solving
12 + 3n = 42

Solving for variable 'n'.

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

Add '-12' to each side of the equation.
12 + -12 + 3n = 42 + -12

Combine like terms: 12 + -12 = 0
0 + 3n = 42 + -12
3n = 42 + -12

Combine like terms: 42 + -12 = 30
3n = 30

Divide each side by '3'.
n = 10

Simplifying
n = 10

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