2z-(-2)=-18

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


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

Multiply -1 * -2
2z + 2 = -18

Reorder the terms:
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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