z-20=-5

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Solution for z-20=-5 equation: 


Simplifying
z + -20 = -5

Reorder the terms:
-20 + z = -5

Solving
-20 + z = -5

Solving for variable 'z'.

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

Add '20' to each side of the equation.
-20 + 20 + z = -5 + 20

Combine like terms: -20 + 20 = 0
0 + z = -5 + 20
z = -5 + 20

Combine like terms: -5 + 20 = 15
z = 15

Simplifying
z = 15

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