7z-z=-1+3z-1-1

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Solution for 7z-z=-1+3z-1-1 equation: 


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

Combine like terms: 7z + -1z = 6z
6z = -1 + 3z + -1 + -1

Reorder the terms:
6z = -1 + -1 + -1 + 3z

Combine like terms: -1 + -1 = -2
6z = -2 + -1 + 3z

Combine like terms: -2 + -1 = -3
6z = -3 + 3z

Solving
6z = -3 + 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.
6z + -3z = -3 + 3z + -3z

Combine like terms: 6z + -3z = 3z
3z = -3 + 3z + -3z

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

Divide each side by '3'.
z = -1

Simplifying
z = -1

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