7z-28=

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Solution for 7z-28= equation: 


Simplifying
7z + -28 = 0

Reorder the terms:
-28 + 7z = 0

Solving
-28 + 7z = 0

Solving for variable 'z'.

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

Add '28' to each side of the equation.
-28 + 28 + 7z = 0 + 28

Combine like terms: -28 + 28 = 0
0 + 7z = 0 + 28
7z = 0 + 28

Combine like terms: 0 + 28 = 28
7z = 28

Divide each side by '7'.
z = 4

Simplifying
z = 4

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