-2a+4a=-4

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Solution for -2a+4a=-4 equation: 


Simplifying
-2a + 4a = -4

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

Solving
2a = -4

Solving for variable 'a'.

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

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

Simplifying
a = -2

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