7z-9=-9

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Solution for 7z-9=-9 equation: 


Simplifying
7z + -9 = -9

Reorder the terms:
-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 = 0
7z = 0

Solving
7z = 0

Solving for variable 'z'.

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

Divide each side by '7'.
z = 0

Simplifying
z = 0

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