-1x-1=1-21

Solution for -1x-1=1-21 equation:

Simplifying
-1x + -1 = 1 + -21

Reorder the terms:
-1 + -1x = 1 + -21

Combine like terms: 1 + -21 = -20
-1 + -1x = -20

Solving
-1 + -1x = -20

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 + -1x = -20 + 1

Combine like terms: -1 + 1 = 0
0 + -1x = -20 + 1
-1x = -20 + 1

Combine like terms: -20 + 1 = -19
-1x = -19

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

Simplifying
x = 19