-4z+12=-20

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Solution for -4z+12=-20 equation: 


Simplifying
-4z + 12 = -20

Reorder the terms:
12 + -4z = -20

Solving
12 + -4z = -20

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 + -4z = -20 + -12

Combine like terms: 12 + -12 = 0
0 + -4z = -20 + -12
-4z = -20 + -12

Combine like terms: -20 + -12 = -32
-4z = -32

Divide each side by '-4'.
z = 8

Simplifying
z = 8

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