x+nx+3=0

Solution for x+nx+3=0 equation:

Simplifying
x + nx + 3 = 0

Reorder the terms:
3 + nx + x = 0

Solving
3 + nx + x = 0

Solving for variable 'n'.

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

Add '-3' to each side of the equation.
3 + nx + -3 + x = 0 + -3

Reorder the terms:
3 + -3 + nx + x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + nx + x = 0 + -3
nx + x = 0 + -3

Combine like terms: 0 + -3 = -3
nx + x = -3

Add '-1x' to each side of the equation.
nx + x + -1x = -3 + -1x

Combine like terms: x + -1x = 0
nx + 0 = -3 + -1x
nx = -3 + -1x

Divide each side by 'x'.
n = -3x-1 + -1

Simplifying
n = -3x-1 + -1

Reorder the terms:
n = -1 + -3x-1