3(5+n)=-42

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Solution for 3(5+n)=-42 equation: 


Simplifying
3(5 + n) = -42
(5 * 3 + n * 3) = -42
(15 + 3n) = -42

Solving
15 + 3n = -42

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 = -42 + -15

Combine like terms: 15 + -15 = 0
0 + 3n = -42 + -15
3n = -42 + -15

Combine like terms: -42 + -15 = -57
3n = -57

Divide each side by '3'.
n = -19

Simplifying
n = -19

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