7z-2=-30

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Solution for 7z-2=-30 equation: 


Simplifying
7z + -2 = -30

Reorder the terms:
-2 + 7z = -30

Solving
-2 + 7z = -30

Solving for variable 'z'.

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

Add '2' to each side of the equation.
-2 + 2 + 7z = -30 + 2

Combine like terms: -2 + 2 = 0
0 + 7z = -30 + 2
7z = -30 + 2

Combine like terms: -30 + 2 = -28
7z = -28

Divide each side by '7'.
z = -4

Simplifying
z = -4

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