2*z-1=19

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Solution for 2*z-1=19 equation: 


Simplifying
2z + -1 = 19

Reorder the terms:
-1 + 2z = 19

Solving
-1 + 2z = 19

Solving for variable 'z'.

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

Add '1' to each side of the equation.
-1 + 1 + 2z = 19 + 1

Combine like terms: -1 + 1 = 0
0 + 2z = 19 + 1
2z = 19 + 1

Combine like terms: 19 + 1 = 20
2z = 20

Divide each side by '2'.
z = 10

Simplifying
z = 10

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