6+3x=-x-6

Solution for 6+3x=-x-6 equation:

Simplifying
6 + 3x = -1x + -6

Reorder the terms:
6 + 3x = -6 + -1x

Solving
6 + 3x = -6 + -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.
6 + 3x + x = -6 + -1x + x

Combine like terms: 3x + x = 4x
6 + 4x = -6 + -1x + x

Combine like terms: -1x + x = 0
6 + 4x = -6 + 0
6 + 4x = -6

Add '-6' to each side of the equation.
6 + -6 + 4x = -6 + -6

Combine like terms: 6 + -6 = 0
0 + 4x = -6 + -6
4x = -6 + -6

Combine like terms: -6 + -6 = -12
4x = -12

Divide each side by '4'.
x = -3

Simplifying
x = -3