9z-z=-2+3z-1-12

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Solution for 9z-z=-2+3z-1-12 equation:


Simplifying
9z + -1z = -2 + 3z + -1 + -12

Combine like terms: 9z + -1z = 8z
8z = -2 + 3z + -1 + -12

Reorder the terms:
8z = -2 + -1 + -12 + 3z

Combine like terms: -2 + -1 = -3
8z = -3 + -12 + 3z

Combine like terms: -3 + -12 = -15
8z = -15 + 3z

Solving
8z = -15 + 3z

Solving for variable 'z'.

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

Add '-3z' to each side of the equation.
8z + -3z = -15 + 3z + -3z

Combine like terms: 8z + -3z = 5z
5z = -15 + 3z + -3z

Combine like terms: 3z + -3z = 0
5z = -15 + 0
5z = -15

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

Simplifying
z = -3

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