-2(z-1)=-18

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Solution for -2(z-1)=-18 equation:


Simplifying
-2(z + -1) = -18

Reorder the terms:
-2(-1 + z) = -18
(-1 * -2 + z * -2) = -18
(2 + -2z) = -18

Solving
2 + -2z = -18

Solving for variable 'z'.

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

Add '-2' to each side of the equation.
2 + -2 + -2z = -18 + -2

Combine like terms: 2 + -2 = 0
0 + -2z = -18 + -2
-2z = -18 + -2

Combine like terms: -18 + -2 = -20
-2z = -20

Divide each side by '-2'.
z = 10

Simplifying
z = 10

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