(-a)=(-4)

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


Simplifying
(-1a) = (-4)
(-1a) = -4

Solving
(-1a) = -4

Solving for variable 'a'.

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

Divide each side by '-1'.
a = 4

Simplifying
a = 4

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