-2z-15=4

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Solution for -2z-15=4 equation: 


Simplifying
-2z + -15 = 4

Reorder the terms:
-15 + -2z = 4

Solving
-15 + -2z = 4

Solving for variable 'z'.

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

Add '15' to each side of the equation.
-15 + 15 + -2z = 4 + 15

Combine like terms: -15 + 15 = 0
0 + -2z = 4 + 15
-2z = 4 + 15

Combine like terms: 4 + 15 = 19
-2z = 19

Divide each side by '-2'.
z = -9.5

Simplifying
z = -9.5

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