42+13n=81

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Solution for 42+13n=81 equation: 


Simplifying
42 + 13n = 81

Solving
42 + 13n = 81

Solving for variable 'n'.

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

Add '-42' to each side of the equation.
42 + -42 + 13n = 81 + -42

Combine like terms: 42 + -42 = 0
0 + 13n = 81 + -42
13n = 81 + -42

Combine like terms: 81 + -42 = 39
13n = 39

Divide each side by '13'.
n = 3

Simplifying
n = 3

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