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

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


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

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

Multiply -1 * 0
0 = 2a

Anything times zero is zero.
0 = 2a

Solving
0 = 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
0 + -2a = 2a + -2a
Remove the zero:
-2a = 2a + -2a

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

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

Simplifying
a = 0

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