z-20=20

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Solution for z-20=20 equation: 


Simplifying
z + -20 = 20

Reorder the terms:
-20 + z = 20

Solving
-20 + z = 20

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 = 20 + 20

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

Combine like terms: 20 + 20 = 40
z = 40

Simplifying
z = 40

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