1+3n+n=-15

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Solution for 1+3n+n=-15 equation: 


Simplifying
1 + 3n + n = -15

Combine like terms: 3n + n = 4n
1 + 4n = -15

Solving
1 + 4n = -15

Solving for variable 'n'.

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

Add '-1' to each side of the equation.
1 + -1 + 4n = -15 + -1

Combine like terms: 1 + -1 = 0
0 + 4n = -15 + -1
4n = -15 + -1

Combine like terms: -15 + -1 = -16
4n = -16

Divide each side by '4'.
n = -4

Simplifying
n = -4

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