7z-9=180

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Solution for 7z-9=180 equation: 


Simplifying
7z + -9 = 180

Reorder the terms:
-9 + 7z = 180

Solving
-9 + 7z = 180

Solving for variable 'z'.

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

Add '9' to each side of the equation.
-9 + 9 + 7z = 180 + 9

Combine like terms: -9 + 9 = 0
0 + 7z = 180 + 9
7z = 180 + 9

Combine like terms: 180 + 9 = 189
7z = 189

Divide each side by '7'.
z = 27

Simplifying
z = 27

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