z=81+9z-7

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Solution for z=81+9z-7 equation:


Simplifying
z = 81 + 9z + -7

Reorder the terms:
z = 81 + -7 + 9z

Combine like terms: 81 + -7 = 74
z = 74 + 9z

Solving
z = 74 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
z + -9z = 74 + 9z + -9z

Combine like terms: z + -9z = -8z
-8z = 74 + 9z + -9z

Combine like terms: 9z + -9z = 0
-8z = 74 + 0
-8z = 74

Divide each side by '-8'.
z = -9.25

Simplifying
z = -9.25

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