a-(-4)=0

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Solution for a-(-4)=0 equation: 


Simplifying
a + -1(-4) = 0

Multiply -1 * -4
a + 4 = 0

Reorder the terms:
4 + a = 0

Solving
4 + a = 0

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 + a = 0 + -4

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

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

Simplifying
a = -4

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