-2z-1=15

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Solution for -2z-1=15 equation: 


Simplifying
-2z + -1 = 15

Reorder the terms:
-1 + -2z = 15

Solving
-1 + -2z = 15

Solving for variable 'z'.

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

Add '1' to each side of the equation.
-1 + 1 + -2z = 15 + 1

Combine like terms: -1 + 1 = 0
0 + -2z = 15 + 1
-2z = 15 + 1

Combine like terms: 15 + 1 = 16
-2z = 16

Divide each side by '-2'.
z = -8

Simplifying
z = -8

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