2z-7-1=z-1

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Solution for 2z-7-1=z-1 equation: 


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

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

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

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

Solving
-8 + 2z = -1 + z

Solving for variable 'z'.

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

Add '-1z' to each side of the equation.
-8 + 2z + -1z = -1 + z + -1z

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

Combine like terms: z + -1z = 0
-8 + 1z = -1 + 0
-8 + 1z = -1

Add '8' to each side of the equation.
-8 + 8 + 1z = -1 + 8

Combine like terms: -8 + 8 = 0
0 + 1z = -1 + 8
1z = -1 + 8

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

Divide each side by '1'.
z = 7

Simplifying
z = 7

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