4=2z-4

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Solution for 4=2z-4 equation:


Simplifying
4 = 2z + -4

Reorder the terms:
4 = -4 + 2z

Solving
4 = -4 + 2z

Solving for variable 'z'.

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

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

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

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

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

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

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

Simplifying
z = 4

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