-9(7z-1)-3=-57

Solution for -9(7z-1)-3=-57 equation:

Simplifying
-9(7z + -1) + -3 = -57

Reorder the terms:
-9(-1 + 7z) + -3 = -57
(-1 * -9 + 7z * -9) + -3 = -57
(9 + -63z) + -3 = -57

Reorder the terms:
9 + -3 + -63z = -57

Combine like terms: 9 + -3 = 6
6 + -63z = -57

Solving
6 + -63z = -57

Solving for variable 'z'.

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

Add '-6' to each side of the equation.
6 + -6 + -63z = -57 + -6

Combine like terms: 6 + -6 = 0
0 + -63z = -57 + -6
-63z = -57 + -6

Combine like terms: -57 + -6 = -63
-63z = -63

Divide each side by '-63'.
z = 1

Simplifying
z = 1