-13=6+x

Solution for -13=6+x equation:

Simplifying
-13 = 6 + x

Solving
-13 = 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.
-13 + -1x = 6 + x + -1x

Combine like terms: x + -1x = 0
-13 + -1x = 6 + 0
-13 + -1x = 6

Add '13' to each side of the equation.
-13 + 13 + -1x = 6 + 13

Combine like terms: -13 + 13 = 0
0 + -1x = 6 + 13
-1x = 6 + 13

Combine like terms: 6 + 13 = 19
-1x = 19

Divide each side by '-1'.
x = -19

Simplifying
x = -19