3+12x=-1x

Solution for 3+12x=-1x equation:

Simplifying
3 + 12x = -1x

Solving
3 + 12x = -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
3 + 12x + x = -1x + x

Combine like terms: 12x + x = 13x
3 + 13x = -1x + x

Combine like terms: -1x + x = 0
3 + 13x = 0

Add '-3' to each side of the equation.
3 + -3 + 13x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 13x = 0 + -3
13x = 0 + -3

Combine like terms: 0 + -3 = -3
13x = -3

Divide each side by '13'.
x = -0.2307692308

Simplifying
x = -0.2307692308