z+-2z+4z+-8z-2=18

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Solution for z+-2z+4z+-8z-2=18 equation: 


Simplifying
z + -2z + 4z + -8z + -2 = 18

Reorder the terms:
-2 + z + -2z + 4z + -8z = 18

Combine like terms: z + -2z = -1z
-2 + -1z + 4z + -8z = 18

Combine like terms: -1z + 4z = 3z
-2 + 3z + -8z = 18

Combine like terms: 3z + -8z = -5z
-2 + -5z = 18

Solving
-2 + -5z = 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 + -5z = 18 + 2

Combine like terms: -2 + 2 = 0
0 + -5z = 18 + 2
-5z = 18 + 2

Combine like terms: 18 + 2 = 20
-5z = 20

Divide each side by '-5'.
z = -4

Simplifying
z = -4

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