6z-90=30

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Solution for 6z-90=30 equation: 


Simplifying
6z + -90 = 30

Reorder the terms:
-90 + 6z = 30

Solving
-90 + 6z = 30

Solving for variable 'z'.

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

Add '90' to each side of the equation.
-90 + 90 + 6z = 30 + 90

Combine like terms: -90 + 90 = 0
0 + 6z = 30 + 90
6z = 30 + 90

Combine like terms: 30 + 90 = 120
6z = 120

Divide each side by '6'.
z = 20

Simplifying
z = 20

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