4-2z=12

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Solution for 4-2z=12 equation: 


Simplifying
4 + -2z = 12

Solving
4 + -2z = 12

Solving for variable 'z'.

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

Add '-4' to each side of the equation.
4 + -4 + -2z = 12 + -4

Combine like terms: 4 + -4 = 0
0 + -2z = 12 + -4
-2z = 12 + -4

Combine like terms: 12 + -4 = 8
-2z = 8

Divide each side by '-2'.
z = -4

Simplifying
z = -4

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