8z-z=-2+2z-2-1

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Solution for 8z-z=-2+2z-2-1 equation: 


Simplifying
8z + -1z = -2 + 2z + -2 + -1

Combine like terms: 8z + -1z = 7z
7z = -2 + 2z + -2 + -1

Reorder the terms:
7z = -2 + -2 + -1 + 2z

Combine like terms: -2 + -2 = -4
7z = -4 + -1 + 2z

Combine like terms: -4 + -1 = -5
7z = -5 + 2z

Solving
7z = -5 + 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.
7z + -2z = -5 + 2z + -2z

Combine like terms: 7z + -2z = 5z
5z = -5 + 2z + -2z

Combine like terms: 2z + -2z = 0
5z = -5 + 0
5z = -5

Divide each side by '5'.
z = -1

Simplifying
z = -1

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