9z-17=80

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Solution for 9z-17=80 equation: 


Simplifying
9z + -17 = 80

Reorder the terms:
-17 + 9z = 80

Solving
-17 + 9z = 80

Solving for variable 'z'.

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

Add '17' to each side of the equation.
-17 + 17 + 9z = 80 + 17

Combine like terms: -17 + 17 = 0
0 + 9z = 80 + 17
9z = 80 + 17

Combine like terms: 80 + 17 = 97
9z = 97

Divide each side by '9'.
z = 10.77777778

Simplifying
z = 10.77777778

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