2z-4-1z=4

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Solution for 2z-4-1z=4 equation: 


Simplifying
2z + -4 + -1z = 4

Reorder the terms:
-4 + 2z + -1z = 4

Combine like terms: 2z + -1z = 1z
-4 + 1z = 4

Solving
-4 + 1z = 4

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 + 1z = 4 + 4

Combine like terms: -4 + 4 = 0
0 + 1z = 4 + 4
1z = 4 + 4

Combine like terms: 4 + 4 = 8
1z = 8

Divide each side by '1'.
z = 8

Simplifying
z = 8

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