9z-z=-3+2z-2-7

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Solution for 9z-z=-3+2z-2-7 equation: 


Simplifying
9z + -1z = -3 + 2z + -2 + -7

Combine like terms: 9z + -1z = 8z
8z = -3 + 2z + -2 + -7

Reorder the terms:
8z = -3 + -2 + -7 + 2z

Combine like terms: -3 + -2 = -5
8z = -5 + -7 + 2z

Combine like terms: -5 + -7 = -12
8z = -12 + 2z

Solving
8z = -12 + 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.
8z + -2z = -12 + 2z + -2z

Combine like terms: 8z + -2z = 6z
6z = -12 + 2z + -2z

Combine like terms: 2z + -2z = 0
6z = -12 + 0
6z = -12

Divide each side by '6'.
z = -2

Simplifying
z = -2

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