7z-1=55

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Solution for 7z-1=55 equation: 


Simplifying
7z + -1 = 55

Reorder the terms:
-1 + 7z = 55

Solving
-1 + 7z = 55

Solving for variable 'z'.

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

Add '1' to each side of the equation.
-1 + 1 + 7z = 55 + 1

Combine like terms: -1 + 1 = 0
0 + 7z = 55 + 1
7z = 55 + 1

Combine like terms: 55 + 1 = 56
7z = 56

Divide each side by '7'.
z = 8

Simplifying
z = 8

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