a-(ab-a)=

Solution for a-(ab-a)= equation:

Simplifying
a + -1(ab + -1a) = 0

Reorder the terms:
a + -1(-1a + ab) = 0
a + (-1a * -1 + ab * -1) = 0
a + (1a + -1ab) = 0

Combine like terms: a + 1a = 2a
2a + -1ab = 0

Solving
2a + -1ab = 0

Solving for variable 'a'.

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

Factor out the Greatest Common Factor (GCF), 'a'.
a(2 + -1b) = 0

Subproblem 1
Set the factor 'a' equal to zero and attempt to solve:

Simplifying
a = 0

Solving
a = 0

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

Simplifying
a = 0
Subproblem 2
Set the factor '(2 + -1b)' equal to zero and attempt to solve:

Simplifying
2 + -1b = 0

Solving
2 + -1b = 0

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

Add '-2' to each side of the equation.
2 + -2 + -1b = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -1b = 0 + -2
-1b = 0 + -2

Combine like terms: 0 + -2 = -2
-1b = -2

Add 'b' to each side of the equation.
-1b + b = -2 + b

Combine like terms: -1b + b = 0
0 = -2 + b

Simplifying
0 = -2 + b

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
a = {0}