4z-4=-16

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Solution for 4z-4=-16 equation: 


Simplifying
4z + -4 = -16

Reorder the terms:
-4 + 4z = -16

Solving
-4 + 4z = -16

Solving for variable 'z'.

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

Add '4' to each side of the equation.
-4 + 4 + 4z = -16 + 4

Combine like terms: -4 + 4 = 0
0 + 4z = -16 + 4
4z = -16 + 4

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

Divide each side by '4'.
z = -3

Simplifying
z = -3

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