z-12=-8

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Solution for z-12=-8 equation: 


Simplifying
z + -12 = -8

Reorder the terms:
-12 + z = -8

Solving
-12 + z = -8

Solving for variable 'z'.

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

Add '12' to each side of the equation.
-12 + 12 + z = -8 + 12

Combine like terms: -12 + 12 = 0
0 + z = -8 + 12
z = -8 + 12

Combine like terms: -8 + 12 = 4
z = 4

Simplifying
z = 4

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