30-2z=o

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Solution for 30-2z=o equation: 


Simplifying
30 + -2z = o

Solving
30 + -2z = o

Solving for variable 'z'.

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

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

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

Divide each side by '-2'.
z = 15 + -0.5o

Simplifying
z = 15 + -0.5o

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