9z-z=-2+4z-2-4

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Solution for 9z-z=-2+4z-2-4 equation:


Simplifying
9z + -1z = -2 + 4z + -2 + -4

Combine like terms: 9z + -1z = 8z
8z = -2 + 4z + -2 + -4

Reorder the terms:
8z = -2 + -2 + -4 + 4z

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

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

Solving
8z = -8 + 4z

Solving for variable 'z'.

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

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

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

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

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

Simplifying
z = -2

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