-x-a=-b

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Solution for -x-a=-b equation:


Simplifying
-1x + -1a = -1b

Reorder the terms:
-1a + -1x = -1b

Solving
-1a + -1x = -1b

Solving for variable 'a'.

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

Add 'x' to each side of the equation.
-1a + -1x + x = -1b + x

Combine like terms: -1x + x = 0
-1a + 0 = -1b + x
-1a = -1b + x

Divide each side by '-1'.
a = b + -1x

Simplifying
a = b + -1x

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