-5z-15=25

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Solution for -5z-15=25 equation: 


Simplifying
-5z + -15 = 25

Reorder the terms:
-15 + -5z = 25

Solving
-15 + -5z = 25

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 + -5z = 25 + 15

Combine like terms: -15 + 15 = 0
0 + -5z = 25 + 15
-5z = 25 + 15

Combine like terms: 25 + 15 = 40
-5z = 40

Divide each side by '-5'.
z = -8

Simplifying
z = -8

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