-1-3=6+x

Solution for -1-3=6+x equation:

Simplifying
-1 + -3 = 6 + x

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

Solving
-4 = 6 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-4 + -1x = 6 + x + -1x

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

Add '4' to each side of the equation.
-4 + 4 + -1x = 6 + 4

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

Combine like terms: 6 + 4 = 10
-1x = 10

Divide each side by '-1'.
x = -10

Simplifying
x = -10