8z-10-z=129

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Solution for 8z-10-z=129 equation:


Simplifying
8z + -10 + -1z = 129

Reorder the terms:
-10 + 8z + -1z = 129

Combine like terms: 8z + -1z = 7z
-10 + 7z = 129

Solving
-10 + 7z = 129

Solving for variable 'z'.

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

Add '10' to each side of the equation.
-10 + 10 + 7z = 129 + 10

Combine like terms: -10 + 10 = 0
0 + 7z = 129 + 10
7z = 129 + 10

Combine like terms: 129 + 10 = 139
7z = 139

Divide each side by '7'.
z = 19.85714286

Simplifying
z = 19.85714286

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