2a-(-2a-4)=-12

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Solution for 2a-(-2a-4)=-12 equation:


Simplifying
2a + -1(-2a + -4) = -12

Reorder the terms:
2a + -1(-4 + -2a) = -12
2a + (-4 * -1 + -2a * -1) = -12
2a + (4 + 2a) = -12

Reorder the terms:
4 + 2a + 2a = -12

Combine like terms: 2a + 2a = 4a
4 + 4a = -12

Solving
4 + 4a = -12

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + 4a = -12 + -4

Combine like terms: 4 + -4 = 0
0 + 4a = -12 + -4
4a = -12 + -4

Combine like terms: -12 + -4 = -16
4a = -16

Divide each side by '4'.
a = -4

Simplifying
a = -4

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