3z-12=18

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Solution for 3z-12=18 equation: 


Simplifying
3z + -12 = 18

Reorder the terms:
-12 + 3z = 18

Solving
-12 + 3z = 18

Solving for variable 'z'.

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

Add '12' to each side of the equation.
-12 + 12 + 3z = 18 + 12

Combine like terms: -12 + 12 = 0
0 + 3z = 18 + 12
3z = 18 + 12

Combine like terms: 18 + 12 = 30
3z = 30

Divide each side by '3'.
z = 10

Simplifying
z = 10

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