-2z-4=8

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Solution for -2z-4=8 equation: 


Simplifying
-2z + -4 = 8

Reorder the terms:
-4 + -2z = 8

Solving
-4 + -2z = 8

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 + -2z = 8 + 4

Combine like terms: -4 + 4 = 0
0 + -2z = 8 + 4
-2z = 8 + 4

Combine like terms: 8 + 4 = 12
-2z = 12

Divide each side by '-2'.
z = -6

Simplifying
z = -6

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