7z-8z=9z+1-z

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Solution for 7z-8z=9z+1-z equation: 


Simplifying
7z + -8z = 9z + 1 + -1z

Combine like terms: 7z + -8z = -1z
-1z = 9z + 1 + -1z

Reorder the terms:
-1z = 1 + 9z + -1z

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

Solving
-1z = 1 + 8z

Solving for variable 'z'.

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

Add '-8z' to each side of the equation.
-1z + -8z = 1 + 8z + -8z

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

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

Divide each side by '-9'.
z = -0.1111111111

Simplifying
z = -0.1111111111

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