Simplifying
X + -1 = -6
Reorder the terms:
-1 + X = -6
Solving
-1 + X = -6
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '1' to each side of the equation.
-1 + 1 + X = -6 + 1
Combine like terms: -1 + 1 = 0
0 + X = -6 + 1
X = -6 + 1
Combine like terms: -6 + 1 = -5
X = -5
Simplifying
X = -5