-2z-7=23

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Solution for -2z-7=23 equation: 


Simplifying
-2z + -7 = 23

Reorder the terms:
-7 + -2z = 23

Solving
-7 + -2z = 23

Solving for variable 'z'.

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

Add '7' to each side of the equation.
-7 + 7 + -2z = 23 + 7

Combine like terms: -7 + 7 = 0
0 + -2z = 23 + 7
-2z = 23 + 7

Combine like terms: 23 + 7 = 30
-2z = 30

Divide each side by '-2'.
z = -15

Simplifying
z = -15

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