30=12z-18

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Solution for 30=12z-18 equation:


Simplifying
30 = 12z + -18

Reorder the terms:
30 = -18 + 12z

Solving
30 = -18 + 12z

Solving for variable 'z'.

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

Add '-12z' to each side of the equation.
30 + -12z = -18 + 12z + -12z

Combine like terms: 12z + -12z = 0
30 + -12z = -18 + 0
30 + -12z = -18

Add '-30' to each side of the equation.
30 + -30 + -12z = -18 + -30

Combine like terms: 30 + -30 = 0
0 + -12z = -18 + -30
-12z = -18 + -30

Combine like terms: -18 + -30 = -48
-12z = -48

Divide each side by '-12'.
z = 4

Simplifying
z = 4

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