-2z-20=0

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Solution for -2z-20=0 equation: 


Simplifying
-2z + -20 = 0

Reorder the terms:
-20 + -2z = 0

Solving
-20 + -2z = 0

Solving for variable 'z'.

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

Add '20' to each side of the equation.
-20 + 20 + -2z = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -2z = 0 + 20
-2z = 0 + 20

Combine like terms: 0 + 20 = 20
-2z = 20

Divide each side by '-2'.
z = -10

Simplifying
z = -10

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