8z-1=9

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Solution for 8z-1=9 equation: 


Simplifying
8z + -1 = 9

Reorder the terms:
-1 + 8z = 9

Solving
-1 + 8z = 9

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 + 8z = 9 + 1

Combine like terms: -1 + 1 = 0
0 + 8z = 9 + 1
8z = 9 + 1

Combine like terms: 9 + 1 = 10
8z = 10

Divide each side by '8'.
z = 1.25

Simplifying
z = 1.25

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