Respuesta :

-6.3=z-3.9
i think you need to solve for Z.
so we need to get the Z on one side alone.
-6.3=z-3.9       
we need to move the -3.9 on to the otherside.
so if we need to move something over the other side, we flip the sign so.
-6.3+3.9=z
z=-2.4

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