12+5z-4-z=

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Solution for 12+5z-4-z= equation:


Simplifying
12 + 5z + -4 + -1z = 0

Reorder the terms:
12 + -4 + 5z + -1z = 0

Combine like terms: 12 + -4 = 8
8 + 5z + -1z = 0

Combine like terms: 5z + -1z = 4z
8 + 4z = 0

Solving
8 + 4z = 0

Solving for variable 'z'.

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

Add '-8' to each side of the equation.
8 + -8 + 4z = 0 + -8

Combine like terms: 8 + -8 = 0
0 + 4z = 0 + -8
4z = 0 + -8

Combine like terms: 0 + -8 = -8
4z = -8

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

Simplifying
z = -2

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