a-2(a-1)=2+a

Solution for a-2(a-1)=2+a equation:

Simplifying
a + -2(a + -1) = 2 + a

Reorder the terms:
a + -2(-1 + a) = 2 + a
a + (-1 * -2 + a * -2) = 2 + a
a + (2 + -2a) = 2 + a

Reorder the terms:
2 + a + -2a = 2 + a

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

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

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

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

Solving
-1a = a

Solving for variable 'a'.

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

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

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

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

Divide each side by '-2'.
a = 0

Simplifying
a = 0