Respuesta :

Answer:

z = - 1

Step-by-step explanation:

z + (z - 6) - 2 = - 10 ← remove the parenthesis on left side

z + z - 6 - 2 = - 10 , that is

2z - 8 = - 10 ( add 8 to both sides )

2z = - 2 ( divide both sides by 2 )

z = - 1

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