8z-z=-2+2z-1-12

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Solution for 8z-z=-2+2z-1-12 equation: 


Simplifying
8z + -1z = -2 + 2z + -1 + -12

Combine like terms: 8z + -1z = 7z
7z = -2 + 2z + -1 + -12

Reorder the terms:
7z = -2 + -1 + -12 + 2z

Combine like terms: -2 + -1 = -3
7z = -3 + -12 + 2z

Combine like terms: -3 + -12 = -15
7z = -15 + 2z

Solving
7z = -15 + 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 = -15 + 2z + -2z

Combine like terms: 7z + -2z = 5z
5z = -15 + 2z + -2z

Combine like terms: 2z + -2z = 0
5z = -15 + 0
5z = -15

Divide each side by '5'.
z = -3

Simplifying
z = -3

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