8z-9=z+9

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


Simplifying
8z + -9 = z + 9

Reorder the terms:
-9 + 8z = z + 9

Reorder the terms:
-9 + 8z = 9 + z

Solving
-9 + 8z = 9 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-9 + 8z + -1z = 9 + z + -1z

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

Combine like terms: z + -1z = 0
-9 + 7z = 9 + 0
-9 + 7z = 9

Add '9' to each side of the equation.
-9 + 9 + 7z = 9 + 9

Combine like terms: -9 + 9 = 0
0 + 7z = 9 + 9
7z = 9 + 9

Combine like terms: 9 + 9 = 18
7z = 18

Divide each side by '7'.
z = 2.571428571

Simplifying
z = 2.571428571

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