-2z-(-2)=-16

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Solution for -2z-(-2)=-16 equation: 


Simplifying
-2z + -1(-2) = -16

Multiply -1 * -2
-2z + 2 = -16

Reorder the terms:
2 + -2z = -16

Solving
2 + -2z = -16

Solving for variable 'z'.

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

Add '-2' to each side of the equation.
2 + -2 + -2z = -16 + -2

Combine like terms: 2 + -2 = 0
0 + -2z = -16 + -2
-2z = -16 + -2

Combine like terms: -16 + -2 = -18
-2z = -18

Divide each side by '-2'.
z = 9

Simplifying
z = 9

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